131791450 has 24 divisors (see below), whose sum is σ = 280151712. Its totient is φ = 45185520.

The previous prime is 131791421. The next prime is 131791469. The reversal of 131791450 is 54197131.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187924 + ... + 188623.

It is an arithmetic number, because the mean of its divisors is an integer number (11672988).

Almost surely, 2^131791450 is an apocalyptic number.

131791450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131791450 is an abundant number, since it is smaller than the sum of its proper divisors (148360262).

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

131791450 is a wasteful number, since it uses less digits than its factorization.

131791450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376566 (or 376561 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 131791450 is about 11480.0457316162. The cubic root of 131791450 is about 508.8960485981.

The spelling of 131791450 in words is "one hundred thirty-one million, seven hundred ninety-one thousand, four hundred fifty".