12513523 has 8 divisors (see below), whose sum is σ = 13855680. Its totient is φ = 11205480.

The previous prime is 12513517. The next prime is 12513563. The reversal of 12513523 is 32531521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12513523 - 2¹³ = 12505331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12513494 and 12513503.

It is not an unprimeable number, because it can be changed into a prime (12513503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7753 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (1731960).

Almost surely, 2^12513523 is an apocalyptic number.

12513523 is a deficient number, since it is larger than the sum of its proper divisors (1342157).

12513523 is a wasteful number, since it uses less digits than its factorization.

12513523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17057.

The product of its digits is 900, while the sum is 22.

The square root of 12513523 is about 3537.4458299739. The cubic root of 12513523 is about 232.1631024598.

It can be divided in two parts, 1251 and 3523, that added together give a palindrome (4774).

The spelling of 12513523 in words is "twelve million, five hundred thirteen thousand, five hundred twenty-three".