11523715 has 16 divisors (see below), whose sum is σ = 15867072. Its totient is φ = 7870464.

The previous prime is 11523683. The next prime is 11523731. The reversal of 11523715 is 51732511.

It is not a de Polignac number, because 11523715 - 2⁵ = 11523683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11523715.

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, 11307 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (991692).

Almost surely, 2^11523715 is an apocalyptic number.

11523715 is a deficient number, since it is larger than the sum of its proper divisors (4343357).

11523715 is an equidigital number, since it uses as much as digits as its factorization.

11523715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326.

The product of its digits is 1050, while the sum is 25.

The square root of 11523715 is about 3394.6597767670. The cubic root of 11523715 is about 225.8729217448.

The spelling of 11523715 in words is "eleven million, five hundred twenty-three thousand, seven hundred fifteen".