131390670 has 16 divisors (see below), whose sum is σ = 315337680. Its totient is φ = 35037504.

The previous prime is 131390639. The next prime is 131390689. The reversal of 131390670 is 76093131.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4379689 = 131390670 / (1 + 3 + 1 + 3 + 9 + 0 + 6 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2189815 + ... + 2189874.

It is an arithmetic number, because the mean of its divisors is an integer number (19708605).

Almost surely, 2^131390670 is an apocalyptic number.

131390670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131390670 is an abundant number, since it is smaller than the sum of its proper divisors (183947010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131390670 is a wasteful number, since it uses less digits than its factorization.

131390670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379699.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 131390670 is about 11462.5769354016. The cubic root of 131390670 is about 508.3796710126.

The spelling of 131390670 in words is "one hundred thirty-one million, three hundred ninety thousand, six hundred seventy".