131232492 has 18 divisors (see below), whose sum is σ = 331726668. Its totient is φ = 43744152.

The previous prime is 131232481. The next prime is 131232499. The reversal of 131232492 is 294232131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (131232499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1822638 + ... + 1822709.

Almost surely, 2^131232492 is an apocalyptic number.

131232492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131232492 is an abundant number, since it is smaller than the sum of its proper divisors (200494176).

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

131232492 is a wasteful number, since it uses less digits than its factorization.

131232492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645357 (or 3645352 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 131232492 is about 11455.6751001414. The cubic root of 131232492 is about 508.1755804916.

The spelling of 131232492 in words is "one hundred thirty-one million, two hundred thirty-two thousand, four hundred ninety-two".