131711870 has 32 divisors (see below), whose sum is σ = 247726080. Its totient is φ = 50361120.

The previous prime is 131711863. The next prime is 131711891. The reversal of 131711870 is 78117131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23171 + ... + 28289.

It is an arithmetic number, because the mean of its divisors is an integer number (7741440).

Almost surely, 2^131711870 is an apocalyptic number.

131711870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131711870 is a deficient number, since it is larger than the sum of its proper divisors (116014210).

131711870 is a wasteful number, since it uses less digits than its factorization.

131711870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240.

The product of its (nonzero) digits is 1176, while the sum is 29.

The square root of 131711870 is about 11476.5791941676. The cubic root of 131711870 is about 508.7935985995.

The spelling of 131711870 in words is "one hundred thirty-one million, seven hundred eleven thousand, eight hundred seventy".