131670686 has 16 divisors (see below), whose sum is σ = 226111200. Its totient is φ = 56332800.

The previous prime is 131670683. The next prime is 131670691. The reversal of 131670686 is 686076131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131670683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (14131950).

Almost surely, 2^131670686 is an apocalyptic number.

131670686 is a deficient number, since it is larger than the sum of its proper divisors (94440514).

131670686 is a wasteful number, since it uses less digits than its factorization.

131670686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 131670686 is about 11474.7847910102. The cubic root of 131670686 is about 508.7405627824.

The spelling of 131670686 in words is "one hundred thirty-one million, six hundred seventy thousand, six hundred eighty-six".