11512715 has 4 divisors (see below), whose sum is σ = 13815264. Its totient is φ = 9210168.

The previous prime is 11512649. The next prime is 11512717. The reversal of 11512715 is 51721511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11512715 - 2¹⁰ = 11511691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11512717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151267 + ... + 1151276.

It is an arithmetic number, because the mean of its divisors is an integer number (3453816).

Almost surely, 2^11512715 is an apocalyptic number.

11512715 is a deficient number, since it is larger than the sum of its proper divisors (2302549).

11512715 is an equidigital number, since it uses as much as digits as its factorization.

11512715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302548.

The product of its digits is 350, while the sum is 23.

The square root of 11512715 is about 3393.0391981231. The cubic root of 11512715 is about 225.8010296185.

The spelling of 11512715 in words is "eleven million, five hundred twelve thousand, seven hundred fifteen".