131890232 has 8 divisors (see below), whose sum is σ = 247294200. Its totient is φ = 65945112.

The previous prime is 131890223. The next prime is 131890247. The reversal of 131890232 is 232098131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 131890195 and 131890204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8243132 + ... + 8243147.

It is an arithmetic number, because the mean of its divisors is an integer number (30911775).

Almost surely, 2^131890232 is an apocalyptic number.

It is an amenable number.

131890232 is a deficient number, since it is larger than the sum of its proper divisors (115403968).

131890232 is a wasteful number, since it uses less digits than its factorization.

131890232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16486285 (or 16486281 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 131890232 is about 11484.3472605107. The cubic root of 131890232 is about 509.0231615863.

The spelling of 131890232 in words is "one hundred thirty-one million, eight hundred ninety thousand, two hundred thirty-two".