13512513 has 8 divisors (see below), whose sum is σ = 20590528. Its totient is φ = 7721424.

The previous prime is 13512491. The next prime is 13512517. The reversal of 13512513 is 31521531.

13512513 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13512513 - 2⁵ = 13512481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 643453 = 13512513 / (1 + 3 + 5 + 1 + 2 + 5 + 1 + 3).

13512513 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 13512513.

It is not an unprimeable number, because it can be changed into a prime (13512517) 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, 321706 + ... + 321747.

It is an arithmetic number, because the mean of its divisors is an integer number (2573816).

Almost surely, 2^13512513 is an apocalyptic number.

It is an amenable number.

13512513 is a deficient number, since it is larger than the sum of its proper divisors (7078015).

13512513 is an equidigital number, since it uses as much as digits as its factorization.

13512513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643463.

The product of its digits is 450, while the sum is 21.

The square root of 13512513 is about 3675.9370233996. The cubic root of 13512513 is about 238.1837022972.

The spelling of 13512513 in words is "thirteen million, five hundred twelve thousand, five hundred thirteen".