131969670 has 32 divisors (see below), whose sum is σ = 361974528. Its totient is φ = 30164448.

The previous prime is 131969659. The next prime is 131969681. The reversal of 131969670 is 76969131.

It is an interprime number because it is at equal distance from previous prime (131969659) and next prime (131969681).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 314004 + ... + 314423.

It is an arithmetic number, because the mean of its divisors is an integer number (11311704).

Almost surely, 2^131969670 is an apocalyptic number.

131969670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131969670 is an abundant number, since it is smaller than the sum of its proper divisors (230004858).

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

131969670 is a wasteful number, since it uses less digits than its factorization.

131969670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628444.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 131969670 is about 11487.8052734193. The cubic root of 131969670 is about 509.1253366193.

The spelling of 131969670 in words is "one hundred thirty-one million, nine hundred sixty-nine thousand, six hundred seventy".