13042513 has 4 divisors (see below), whose sum is σ = 14228208. Its totient is φ = 11856820.

The previous prime is 13042511. The next prime is 13042517. The reversal of 13042513 is 31524031.

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 13042513 - 2¹ = 13042511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13042511) 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, 592831 + ... + 592852.

It is an arithmetic number, because the mean of its divisors is an integer number (3557052).

Almost surely, 2^13042513 is an apocalyptic number.

It is an amenable number.

13042513 is a deficient number, since it is larger than the sum of its proper divisors (1185695).

13042513 is a wasteful number, since it uses less digits than its factorization.

13042513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185694.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13042513 is about 3611.4419557844. The cubic root of 13042513 is about 235.3895034452.

Adding to 13042513 its reverse (31524031), we get a palindrome (44566544).

The spelling of 13042513 in words is "thirteen million, forty-two thousand, five hundred thirteen".