131869507 has 16 divisors (see below), whose sum is σ = 166731264. Its totient is φ = 101304000.

The previous prime is 131869501. The next prime is 131869513. The reversal of 131869507 is 705968131.

It is an interprime number because it is at equal distance from previous prime (131869501) and next prime (131869513).

It is not a de Polignac number, because 131869507 - 2²³ = 123480899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131869507.

It is not an unprimeable number, because it can be changed into a prime (131869501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6594 + ... + 17527.

It is an arithmetic number, because the mean of its divisors is an integer number (10420704).

Almost surely, 2^131869507 is an apocalyptic number.

131869507 is a deficient number, since it is larger than the sum of its proper divisors (34861757).

131869507 is a wasteful number, since it uses less digits than its factorization.

131869507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24210.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 131869507 is about 11483.4449099562. Note that the first 3 decimals coincide. The cubic root of 131869507 is about 508.9964978537.

The spelling of 131869507 in words is "one hundred thirty-one million, eight hundred sixty-nine thousand, five hundred seven".