131161825 has 12 divisors (see below), whose sum is σ = 166424368. Its totient is φ = 102488400.

The previous prime is 131161799. The next prime is 131161843. The reversal of 131161825 is 528161131.

It is not a de Polignac number, because 131161825 - 2¹⁵ = 131129057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131161793 and 131161802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59931 + ... + 62080.

Almost surely, 2^131161825 is an apocalyptic number.

It is an amenable number.

131161825 is a deficient number, since it is larger than the sum of its proper divisors (35262543).

131161825 is a wasteful number, since it uses less digits than its factorization.

131161825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122064 (or 122059 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 131161825 is about 11452.5903183516. The cubic root of 131161825 is about 508.0843487876.

It can be divided in two parts, 13116 and 1825, that added together give a palindrome (14941).

The spelling of 131161825 in words is "one hundred thirty-one million, one hundred sixty-one thousand, eight hundred twenty-five".