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131543134 = 2421156227
BaseRepresentation
bin1111101011100…
…11000001011110
3100011112002020221
413311303001132
5232133340014
621015231554
73155045452
oct765630136
9304462227
10131543134
1168286338
12380785ba
1321338c98
1413682662
15b835b24
hex7d7305e

131543134 has 8 divisors (see below), whose sum is σ = 197784648. Its totient is φ = 65614920.

The previous prime is 131543089. The next prime is 131543143. The reversal of 131543134 is 431345131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1315431342 = 34607192205083912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131543099 and 131543108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77272 + ... + 78955.

It is an arithmetic number, because the mean of its divisors is an integer number (24723081).

Almost surely, 2131543134 is an apocalyptic number.

131543134 is a deficient number, since it is larger than the sum of its proper divisors (66241514).

131543134 is a wasteful number, since it uses less digits than its factorization.

131543134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156650.

The product of its digits is 2160, while the sum is 25.

The square root of 131543134 is about 11469.2255187523. The cubic root of 131543134 is about 508.5762340235.

Adding to 131543134 its reverse (431345131), we get a palindrome (562888265).

The spelling of 131543134 in words is "one hundred thirty-one million, five hundred forty-three thousand, one hundred thirty-four".

Divisors: 1 2 421 842 156227 312454 65771567 131543134