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131324325 = 35211229499
BaseRepresentation
bin1111101001111…
…01100110100101
3100011002222002220
413310331212211
5232104334300
621010422553
73153144516
oct764754645
9304088086
10131324325
1168146a00
1237b91a59
1321290502
1413626a0d
15b7e0da0
hex7d3d9a5

131324325 has 72 divisors (see below), whose sum is σ = 247380000. Its totient is φ = 61353600.

The previous prime is 131324321. The next prime is 131324363. The reversal of 131324325 is 523423131.

It is not a de Polignac number, because 131324325 - 22 = 131324321 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131324295 and 131324304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131324321) 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 71 ways as a sum of consecutive naturals, for example, 262926 + ... + 263424.

Almost surely, 2131324325 is an apocalyptic number.

131324325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131324325 is a deficient number, since it is larger than the sum of its proper divisors (116055675).

131324325 is a wasteful number, since it uses less digits than its factorization.

131324325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 547 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 131324325 is about 11459.6825872273. The cubic root of 131324325 is about 508.2940887616.

Adding to 131324325 its reverse (523423131), we get a palindrome (654747456).

The spelling of 131324325 in words is "one hundred thirty-one million, three hundred twenty-four thousand, three hundred twenty-five".

Divisors: 1 3 5 11 15 25 29 33 55 75 87 121 145 165 275 319 363 435 499 605 725 825 957 1497 1595 1815 2175 2495 3025 3509 4785 5489 7485 7975 9075 10527 12475 14471 16467 17545 23925 27445 37425 43413 52635 60379 72355 82335 87725 137225 159181 181137 217065 263175 301895 361775 411675 477543 795905 905685 1085325 1509475 1750991 2387715 3979525 4528425 5252973 8754955 11938575 26264865 43774775 131324325