131395625 has 10 divisors (see below), whose sum is σ = 164192754. Its totient is φ = 105116000.

The previous prime is 131395613. The next prime is 131395633. The reversal of 131395625 is 526593131.

It can be written as a sum of positive squares in 5 ways, for example, as 25120144 + 106275481 = 5012^2 + 10309^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131395625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 104492 + ... + 105741.

Almost surely, 2^131395625 is an apocalyptic number.

It is an amenable number.

131395625 is a deficient number, since it is larger than the sum of its proper divisors (32797129).

131395625 is an frugal number, since it uses more digits than its factorization.

131395625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210253 (or 210238 counting only the distinct ones).

The product of its digits is 24300, while the sum is 35.

The square root of 131395625 is about 11462.7930714988. The cubic root of 131395625 is about 508.3860615972.

The spelling of 131395625 in words is "one hundred thirty-one million, three hundred ninety-five thousand, six hundred twenty-five".