131931376 has 10 divisors (see below), whose sum is σ = 255617072. Its totient is φ = 65965680.

The previous prime is 131931347. The next prime is 131931377. The reversal of 131931376 is 673139131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131931377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4122840 + ... + 4122871.

Almost surely, 2^131931376 is an apocalyptic number.

131931376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131931376 is a deficient number, since it is larger than the sum of its proper divisors (123685696).

131931376 is an equidigital number, since it uses as much as digits as its factorization.

131931376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8245719 (or 8245713 counting only the distinct ones).

The product of its digits is 10206, while the sum is 34.

The square root of 131931376 is about 11486.1384285581. The cubic root of 131931376 is about 509.0760870917.

The spelling of 131931376 in words is "one hundred thirty-one million, nine hundred thirty-one thousand, three hundred seventy-six".