131869700 has 18 divisors (see below), whose sum is σ = 286157466. Its totient is φ = 52747840.

The previous prime is 131869693. The next prime is 131869783. The reversal of 131869700 is 7968131.

It can be written as a sum of positive squares in 3 ways, for example, as 12054784 + 119814916 = 3472^2 + 10946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 659249 + ... + 659448.

It is an arithmetic number, because the mean of its divisors is an integer number (15897637).

Almost surely, 2^131869700 is an apocalyptic number.

131869700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131869700 is an abundant number, since it is smaller than the sum of its proper divisors (154287766).

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

131869700 is a wasteful number, since it uses less digits than its factorization.

131869700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318711 (or 1318704 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 131869700 is about 11483.4533133548. The cubic root of 131869700 is about 508.9967461705.

The spelling of 131869700 in words is "one hundred thirty-one million, eight hundred sixty-nine thousand, seven hundred".