13502513 has 4 divisors (see below), whose sum is σ = 13608960. Its totient is φ = 13396068.

The previous prime is 13502501. The next prime is 13502519. The reversal of 13502513 is 31520531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13502513 - 2¹⁰ = 13501489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13502519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53033 + ... + 53286.

It is an arithmetic number, because the mean of its divisors is an integer number (3402240).

Almost surely, 2^13502513 is an apocalyptic number.

It is an amenable number.

13502513 is a deficient number, since it is larger than the sum of its proper divisors (106447).

13502513 is a wasteful number, since it uses less digits than its factorization.

13502513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106446.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13502513 is about 3674.5765742463. The cubic root of 13502513 is about 238.1249314669.

The spelling of 13502513 in words is "thirteen million, five hundred two thousand, five hundred thirteen".