131725715 has 32 divisors (see below), whose sum is σ = 181896192. Its totient is φ = 90640000.

The previous prime is 131725691. The next prime is 131725721. The reversal of 131725715 is 517527131.

It is not a de Polignac number, because 131725715 - 2¹² = 131721619 is a prime.

It is a super-2 number, since 2×131725715² = 34703327984522450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127250 + ... + 128280.

It is an arithmetic number, because the mean of its divisors is an integer number (5684256).

Almost surely, 2^131725715 is an apocalyptic number.

131725715 is a deficient number, since it is larger than the sum of its proper divisors (50170477).

131725715 is a wasteful number, since it uses less digits than its factorization.

131725715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its digits is 7350, while the sum is 32.

The square root of 131725715 is about 11477.1823632806. The cubic root of 131725715 is about 508.8114253921.

The spelling of 131725715 in words is "one hundred thirty-one million, seven hundred twenty-five thousand, seven hundred fifteen".