12508969 has 4 divisors (see below), whose sum is σ = 13646160. Its totient is φ = 11371780.

The previous prime is 12508963. The next prime is 12508981. The reversal of 12508969 is 96980521.

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 12508969 - 2¹⁵ = 12476201 is a prime.

It is a super-2 number, since 2×12508969² = 312948610885922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12508963) 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, 568579 + ... + 568600.

It is an arithmetic number, because the mean of its divisors is an integer number (3411540).

Almost surely, 2^12508969 is an apocalyptic number.

It is an amenable number.

12508969 is a deficient number, since it is larger than the sum of its proper divisors (1137191).

12508969 is a wasteful number, since it uses less digits than its factorization.

12508969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137190.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 12508969 is about 3536.8020866314. The cubic root of 12508969 is about 232.1349356237.

The spelling of 12508969 in words is "twelve million, five hundred eight thousand, nine hundred sixty-nine".