131751513 has 12 divisors (see below), whose sum is σ = 201502548. Its totient is φ = 82667520.

The previous prime is 131751493. The next prime is 131751533. The reversal of 131751513 is 315157131.

131751513 is a `hidden beast` number, since 131 + 7 + 515 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (131751493) and next prime (131751533).

It can be written as a sum of positive squares in 2 ways, for example, as 87834384 + 43917129 = 9372^2 + 6627^2 .

It is not a de Polignac number, because 131751513 - 2¹⁷ = 131620441 is a prime.

It is a super-2 number, since 2×131751513² = 34716922355578338, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (131751533) 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 11 ways as a sum of consecutive naturals, for example, 430408 + ... + 430713.

It is an arithmetic number, because the mean of its divisors is an integer number (16791879).

Almost surely, 2^131751513 is an apocalyptic number.

It is an amenable number.

131751513 is a deficient number, since it is larger than the sum of its proper divisors (69751035).

131751513 is a wasteful number, since it uses less digits than its factorization.

131751513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861144 (or 861141 counting only the distinct ones).

The product of its digits is 1575, while the sum is 27.

The square root of 131751513 is about 11478.3061903750. The cubic root of 131751513 is about 508.8446395101.

The spelling of 131751513 in words is "one hundred thirty-one million, seven hundred fifty-one thousand, five hundred thirteen".