13131924 has 24 divisors (see below), whose sum is σ = 32998560. Its totient is φ = 4040544.

The previous prime is 13131917. The next prime is 13131959. The reversal of 13131924 is 42913131.

It is a junction number, because it is equal to n+sod(n) for n = 13131894 and 13131903.

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, 41934 + ... + 42245.

It is an arithmetic number, because the mean of its divisors is an integer number (1374940).

Almost surely, 2^13131924 is an apocalyptic number.

It is an amenable number.

13131924 is an abundant number, since it is smaller than the sum of its proper divisors (19866636).

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

13131924 is a wasteful number, since it uses less digits than its factorization.

13131924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84199 (or 84197 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 13131924 is about 3623.7996633368. The cubic root of 13131924 is about 235.9261714865.

The spelling of 13131924 in words is "thirteen million, one hundred thirty-one thousand, nine hundred twenty-four".