131536825 has 18 divisors (see below), whose sum is σ = 189736926. Its totient is φ = 90195840.

The previous prime is 131536807. The next prime is 131536861. The reversal of 131536825 is 528635131.

It can be written as a sum of positive squares in 3 ways, for example, as 29506624 + 102030201 = 5432^2 + 10101^2 .

It is not a de Polignac number, because 131536825 - 2⁷ = 131536697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52464 + ... + 54913.

Almost surely, 2^131536825 is an apocalyptic number.

It is an amenable number.

131536825 is a deficient number, since it is larger than the sum of its proper divisors (58200101).

131536825 is a wasteful number, since it uses less digits than its factorization.

131536825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107401 (or 107389 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 131536825 is about 11468.9504750871. The cubic root of 131536825 is about 508.5681032082.

The spelling of 131536825 in words is "one hundred thirty-one million, five hundred thirty-six thousand, eight hundred twenty-five".