12507969 has 16 divisors (see below), whose sum is σ = 17436672. Its totient is φ = 7967568.

The previous prime is 12507959. The next prime is 12507977. The reversal of 12507969 is 96970521.

It is not a de Polignac number, because 12507969 - 2⁴ = 12507953 is a prime.

It is a super-2 number, since 2×12507969² = 312898577009922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12507959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5032 + ... + 7094.

It is an arithmetic number, because the mean of its divisors is an integer number (1089792).

Almost surely, 2^12507969 is an apocalyptic number.

It is an amenable number.

12507969 is a deficient number, since it is larger than the sum of its proper divisors (4928703).

12507969 is a wasteful number, since it uses less digits than its factorization.

12507969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 12507969 is about 3536.6607131587. The cubic root of 12507969 is about 232.1287496324.

The spelling of 12507969 in words is "twelve million, five hundred seven thousand, nine hundred sixty-nine".