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131314134 = 23783139271
BaseRepresentation
bin1111101001110…
…11000111010110
3100011002110010110
413310323013112
5232104023014
621010303450
73153103020
oct764730726
9304073113
10131314134
116813a286
1237b87b86
1321288993
1413623010
15b7dcd59
hex7d3b1d6

131314134 has 64 divisors (see below), whose sum is σ = 307077120. Its totient is φ = 36663840.

The previous prime is 131314133. The next prime is 131314163. The reversal of 131314134 is 431413131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 131314134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131314133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484419 + ... + 484689.

It is an arithmetic number, because the mean of its divisors is an integer number (4798080).

Almost surely, 2131314134 is an apocalyptic number.

131314134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131314134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153538560).

131314134 is an abundant number, since it is smaller than the sum of its proper divisors (175762986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131314134 is a wasteful number, since it uses less digits than its factorization.

131314134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its digits is 432, while the sum is 21.

The square root of 131314134 is about 11459.2379327772. The cubic root of 131314134 is about 508.2809402479.

Adding to 131314134 its reverse (431413131), we get a palindrome (562727265).

The spelling of 131314134 in words is "one hundred thirty-one million, three hundred fourteen thousand, one hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 83 139 166 249 271 278 417 498 542 581 813 834 973 1162 1626 1743 1897 1946 2919 3486 3794 5691 5838 11382 11537 22493 23074 34611 37669 44986 67479 69222 75338 80759 113007 134958 157451 161518 226014 242277 263683 314902 472353 484554 527366 791049 944706 1582098 3126527 6253054 9379581 18759162 21885689 43771378 65657067 131314134