131869902 has 64 divisors (see below), whose sum is σ = 288852480. Its totient is φ = 40005504.

The previous prime is 131869853. The next prime is 131869919. The reversal of 131869902 is 209968131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331968 + ... + 332364.

It is an arithmetic number, because the mean of its divisors is an integer number (4513320).

Almost surely, 2^131869902 is an apocalyptic number.

131869902 is an abundant number, since it is smaller than the sum of its proper divisors (156982578).

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

131869902 is a wasteful number, since it uses less digits than its factorization.

131869902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 131869902 is about 11483.4621086152. The cubic root of 131869902 is about 508.9970060667.

The spelling of 131869902 in words is "one hundred thirty-one million, eight hundred sixty-nine thousand, nine hundred two".