13112140 has 24 divisors (see below), whose sum is σ = 27653472. Its totient is φ = 5222400.

The previous prime is 13112129. The next prime is 13112153. The reversal of 13112140 is 4121131.

It is a self number, because there is not a number n which added to its sum of digits gives 13112140.

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, 3865 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (1152228).

Almost surely, 2^13112140 is an apocalyptic number.

13112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112140 is an abundant number, since it is smaller than the sum of its proper divisors (14541332).

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

13112140 is a wasteful number, since it uses less digits than its factorization.

13112140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13112140 is about 3621.0689029622. The cubic root of 13112140 is about 235.8076331488.

Adding to 13112140 its reverse (4121131), we get a palindrome (17233271).

The spelling of 13112140 in words is "thirteen million, one hundred twelve thousand, one hundred forty".