12872513 has 4 divisors (see below), whose sum is σ = 13053888. Its totient is φ = 12691140.

The previous prime is 12872507. The next prime is 12872569. The reversal of 12872513 is 31527821.

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 12872513 - 2⁶ = 12872449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12872413) 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, 90581 + ... + 90722.

It is an arithmetic number, because the mean of its divisors is an integer number (3263472).

Almost surely, 2^12872513 is an apocalyptic number.

It is an amenable number.

12872513 is a deficient number, since it is larger than the sum of its proper divisors (181375).

12872513 is an equidigital number, since it uses as much as digits as its factorization.

12872513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181374.

The product of its digits is 3360, while the sum is 29.

The square root of 12872513 is about 3587.8284518633. The cubic root of 12872513 is about 234.3623152365.

The spelling of 12872513 in words is "twelve million, eight hundred seventy-two thousand, five hundred thirteen".