12571994 has 16 divisors (see below), whose sum is σ = 19474560. Its totient is φ = 6083040.

The previous prime is 12571991. The next prime is 12571997. The reversal of 12571994 is 49917521.

It is an interprime number because it is at equal distance from previous prime (12571991) and next prime (12571997).

It is not an unprimeable number, because it can be changed into a prime (12571991) 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, 10847 + ... + 11949.

It is an arithmetic number, because the mean of its divisors is an integer number (1217160).

Almost surely, 2^12571994 is an apocalyptic number.

12571994 is a deficient number, since it is larger than the sum of its proper divisors (6902566).

12571994 is a wasteful number, since it uses less digits than its factorization.

12571994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285.

The product of its digits is 22680, while the sum is 38.

The square root of 12571994 is about 3545.7007769974. The cubic root of 12571994 is about 232.5241444075.

The spelling of 12571994 in words is "twelve million, five hundred seventy-one thousand, nine hundred ninety-four".