12571864 has 32 divisors (see below), whose sum is σ = 24560640. Its totient is φ = 6026400.

The previous prime is 12571861. The next prime is 12571883. The reversal of 12571864 is 46817521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12571861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40269 + ... + 40579.

It is an arithmetic number, because the mean of its divisors is an integer number (767520).

Almost surely, 2^12571864 is an apocalyptic number.

It is an amenable number.

12571864 is a deficient number, since it is larger than the sum of its proper divisors (11988776).

12571864 is a wasteful number, since it uses less digits than its factorization.

12571864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 507 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 12571864 is about 3545.6824448898. The cubic root of 12571864 is about 232.5233429371.

The spelling of 12571864 in words is "twelve million, five hundred seventy-one thousand, eight hundred sixty-four".