13013515 has 8 divisors (see below), whose sum is σ = 16295328. Its totient is φ = 9958080.

The previous prime is 13013513. The next prime is 13013527. The reversal of 13013515 is 51531031.

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

It is not a de Polignac number, because 13013515 - 2¹ = 13013513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013492 and 13013501.

It is not an unprimeable number, because it can be changed into a prime (13013513) 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, 56466 + ... + 56695.

It is an arithmetic number, because the mean of its divisors is an integer number (2036916).

Almost surely, 2^13013515 is an apocalyptic number.

13013515 is a deficient number, since it is larger than the sum of its proper divisors (3281813).

13013515 is a wasteful number, since it uses less digits than its factorization.

13013515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113189.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 13013515 is about 3607.4249818950. The cubic root of 13013515 is about 235.2149233420.

Adding to 13013515 its reverse (51531031), we get a palindrome (64544546).

The spelling of 13013515 in words is "thirteen million, thirteen thousand, five hundred fifteen".