11715523 has 2 divisors, whose sum is σ = 11715524. Its totient is φ = 11715522.

The previous prime is 11715511. The next prime is 11715527. The reversal of 11715523 is 32551711.

11715523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11715523 - 2¹³ = 11707331 is a prime.

It is not a weakly prime, because it can be changed into another prime (11715527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857761 + 5857762.

It is an arithmetic number, because the mean of its divisors is an integer number (5857762).

Almost surely, 2^11715523 is an apocalyptic number.

11715523 is a deficient number, since it is larger than the sum of its proper divisors (1).

11715523 is an equidigital number, since it uses as much as digits as its factorization.

11715523 is an evil number, because the sum of its binary digits is even.

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

The square root of 11715523 is about 3422.7946184368. The cubic root of 11715523 is about 227.1192229521.

The spelling of 11715523 in words is "eleven million, seven hundred fifteen thousand, five hundred twenty-three".