13131930 has 32 divisors (see below), whose sum is σ = 36019584. Its totient is φ = 3001536.

The previous prime is 13131917. The next prime is 13131959. The reversal of 13131930 is 3913131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13131897 and 13131906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31057 + ... + 31476.

It is an arithmetic number, because the mean of its divisors is an integer number (1125612).

Almost surely, 2^13131930 is an apocalyptic number.

13131930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131930 is an abundant number, since it is smaller than the sum of its proper divisors (22887654).

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

13131930 is a wasteful number, since it uses less digits than its factorization.

13131930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62550.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 13131930 is about 3623.8004911971. The cubic root of 13131930 is about 235.9262074182.

The spelling of 13131930 in words is "thirteen million, one hundred thirty-one thousand, nine hundred thirty".