131525849 has 12 divisors (see below), whose sum is σ = 164769444. Its totient is φ = 104063904.

The previous prime is 131525819. The next prime is 131525857. The reversal of 131525849 is 948525131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85895824 + 45630025 = 9268^2 + 6755^2 .

It is not a de Polignac number, because 131525849 - 2⁸ = 131525593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131525819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102602 + ... + 103875.

It is an arithmetic number, because the mean of its divisors is an integer number (13730787).

Almost surely, 2^131525849 is an apocalyptic number.

It is an amenable number.

131525849 is a deficient number, since it is larger than the sum of its proper divisors (33243595).

131525849 is a wasteful number, since it uses less digits than its factorization.

131525849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206504 (or 206497 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 131525849 is about 11468.4719557577. The cubic root of 131525849 is about 508.5539571094.

The spelling of 131525849 in words is "one hundred thirty-one million, five hundred twenty-five thousand, eight hundred forty-nine".