13012515 has 32 divisors (see below), whose sum is σ = 23365440. Its totient is φ = 6870528.

The previous prime is 13012499. The next prime is 13012523. The reversal of 13012515 is 51521031.

It is not a de Polignac number, because 13012515 - 2⁴ = 13012499 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14829 + ... + 15681.

It is an arithmetic number, because the mean of its divisors is an integer number (730170).

Almost surely, 2^13012515 is an apocalyptic number.

13012515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13012515 is a deficient number, since it is larger than the sum of its proper divisors (10352925).

13012515 is a wasteful number, since it uses less digits than its factorization.

13012515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 974 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 13012515 is about 3607.2863762113. The cubic root of 13012515 is about 235.2088982993.

Adding to 13012515 its reverse (51521031), we get a palindrome (64533546).

The spelling of 13012515 in words is "thirteen million, twelve thousand, five hundred fifteen".