131945492 has 24 divisors (see below), whose sum is σ = 264524736. Its totient is φ = 56412288.

The previous prime is 131945479. The next prime is 131945521. The reversal of 131945492 is 294549131.

It is a super-2 number, since 2×131945492² = 34819225718244128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6683 + ... + 17565.

It is an arithmetic number, because the mean of its divisors is an integer number (11021864).

Almost surely, 2^131945492 is an apocalyptic number.

It is an amenable number.

131945492 is an abundant number, since it is smaller than the sum of its proper divisors (132579244).

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

131945492 is a wasteful number, since it uses less digits than its factorization.

131945492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11327 (or 11325 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 131945492 is about 11486.7528919186. The cubic root of 131945492 is about 509.0942426459.

The spelling of 131945492 in words is "one hundred thirty-one million, nine hundred forty-five thousand, four hundred ninety-two".