131922504 has 144 divisors (see below), whose sum is σ = 423125820. Its totient is φ = 37013760.

The previous prime is 131922487. The next prime is 131922517. The reversal of 131922504 is 405229131.

131922504 is a `hidden beast` number, since 131 + 9 + 22 + 504 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 81540900 + 50381604 = 9030^2 + 7098^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214902 + ... + 215514.

Almost surely, 2^131922504 is an apocalyptic number.

131922504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131922504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211562910).

131922504 is an abundant number, since it is smaller than the sum of its proper divisors (291203316).

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

131922504 is a wasteful number, since it uses less digits than its factorization.

131922504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131922504 is about 11485.7522174214. The cubic root of 131922504 is about 509.0646755421.

The spelling of 131922504 in words is "one hundred thirty-one million, nine hundred twenty-two thousand, five hundred four".