12789513 has 12 divisors (see below), whose sum is σ = 20153328. Its totient is φ = 7751160.

The previous prime is 12789503. The next prime is 12789571. The reversal of 12789513 is 31598721.

It is not a de Polignac number, because 12789513 - 2¹⁴ = 12773129 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12789503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64495 + ... + 64692.

It is an arithmetic number, because the mean of its divisors is an integer number (1679444).

Almost surely, 2^12789513 is an apocalyptic number.

It is an amenable number.

12789513 is a deficient number, since it is larger than the sum of its proper divisors (7363815).

12789513 is a wasteful number, since it uses less digits than its factorization.

12789513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129204 (or 129201 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 12789513 is about 3576.2428608807. The cubic root of 12789513 is about 233.8575179066.

The spelling of 12789513 in words is "twelve million, seven hundred eighty-nine thousand, five hundred thirteen".