11513870 has 16 divisors (see below), whose sum is σ = 21440160. Its totient is φ = 4446624.

The previous prime is 11513863. The next prime is 11513881. The reversal of 11513870 is 7831511.

11513870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19562 + ... + 20141.

It is an arithmetic number, because the mean of its divisors is an integer number (1340010).

Almost surely, 2^11513870 is an apocalyptic number.

11513870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11513870 is a deficient number, since it is larger than the sum of its proper divisors (9926290).

11513870 is a wasteful number, since it uses less digits than its factorization.

11513870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39739.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 11513870 is about 3393.2093952481. The cubic root of 11513870 is about 225.8085804430.

The spelling of 11513870 in words is "eleven million, five hundred thirteen thousand, eight hundred seventy".