131045870 has 32 divisors (see below), whose sum is σ = 243330048. Its totient is φ = 50786208.

The previous prime is 131045857. The next prime is 131045899. The reversal of 131045870 is 78540131.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47057 + ... + 49763.

It is an arithmetic number, because the mean of its divisors is an integer number (7604064).

Almost surely, 2^131045870 is an apocalyptic number.

131045870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131045870 is a deficient number, since it is larger than the sum of its proper divisors (112284178).

131045870 is a wasteful number, since it uses less digits than its factorization.

131045870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 131045870 is about 11447.5268071317. The cubic root of 131045870 is about 507.9345788612.

The spelling of 131045870 in words is "one hundred thirty-one million, forty-five thousand, eight hundred seventy".