12571538 has 24 divisors (see below), whose sum is σ = 22098672. Its totient is φ = 5347944.

The previous prime is 12571519. The next prime is 12571541. The reversal of 12571538 is 83517521.

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, 15581 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (920778).

Almost surely, 2^12571538 is an apocalyptic number.

12571538 is a deficient number, since it is larger than the sum of its proper divisors (9527134).

12571538 is a wasteful number, since it uses less digits than its factorization.

12571538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 959 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 12571538 is about 3545.6364731879. The cubic root of 12571538 is about 232.5213330716.

The spelling of 12571538 in words is "twelve million, five hundred seventy-one thousand, five hundred thirty-eight".