131723975 has 6 divisors (see below), whose sum is σ = 163337760. Its totient is φ = 105379160.

The previous prime is 131723953. The next prime is 131723981. The reversal of 131723975 is 579327131.

It is not a de Polignac number, because 131723975 - 2²⁰ = 130675399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2634455 + ... + 2634504.

It is an arithmetic number, because the mean of its divisors is an integer number (27222960).

Almost surely, 2^131723975 is an apocalyptic number.

131723975 is a deficient number, since it is larger than the sum of its proper divisors (31613785).

131723975 is an equidigital number, since it uses as much as digits as its factorization.

131723975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268969 (or 5268964 counting only the distinct ones).

The product of its digits is 39690, while the sum is 38.

The square root of 131723975 is about 11477.1065604533. The cubic root of 131723975 is about 508.8091850404.

The spelling of 131723975 in words is "one hundred thirty-one million, seven hundred twenty-three thousand, nine hundred seventy-five".