12513775 has 12 divisors (see below), whose sum is σ = 15639624. Its totient is φ = 9932000.

The previous prime is 12513769. The next prime is 12513793. The reversal of 12513775 is 57731521.

It is not a de Polignac number, because 12513775 - 2¹⁹ = 11989487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1365 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1303302).

Almost surely, 2^12513775 is an apocalyptic number.

12513775 is a deficient number, since it is larger than the sum of its proper divisors (3125849).

12513775 is a wasteful number, since it uses less digits than its factorization.

12513775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962 (or 3957 counting only the distinct ones).

The product of its digits is 7350, while the sum is 31.

The square root of 12513775 is about 3537.4814487146. The cubic root of 12513775 is about 232.1646608994.

The spelling of 12513775 in words is "twelve million, five hundred thirteen thousand, seven hundred seventy-five".