12501523 has 16 divisors (see below), whose sum is σ = 13570560. Its totient is φ = 11491200.

The previous prime is 12501509. The next prime is 12501527. The reversal of 12501523 is 32510521.

12501523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12501523 - 2⁵ = 12501491 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 12501523.

It is not an unprimeable number, because it can be changed into a prime (12501527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65358 + ... + 65548.

It is an arithmetic number, because the mean of its divisors is an integer number (848160).

Almost surely, 2^12501523 is an apocalyptic number.

12501523 is a deficient number, since it is larger than the sum of its proper divisors (1069037).

12501523 is a wasteful number, since it uses less digits than its factorization.

12501523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12501523 is about 3535.7492840981. The cubic root of 12501523 is about 232.0888668176.

The spelling of 12501523 in words is "twelve million, five hundred one thousand, five hundred twenty-three".