11513712 has 40 divisors (see below), whose sum is σ = 33993856. Its totient is φ = 3289536.

The previous prime is 11513687. The next prime is 11513729. The reversal of 11513712 is 21731511.

It is a happy number.

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

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, 16798 + ... + 17469.

Almost surely, 2^11513712 is an apocalyptic number.

11513712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11513712 is an abundant number, since it is smaller than the sum of its proper divisors (22480144).

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

11513712 is a wasteful number, since it uses less digits than its factorization.

11513712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34285 (or 34279 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 11513712 is about 3393.1861133749. The cubic root of 11513712 is about 225.8075475461.

The spelling of 11513712 in words is "eleven million, five hundred thirteen thousand, seven hundred twelve".