12665042 has 16 divisors (see below), whose sum is σ = 21349440. Its totient is φ = 5590992.

The previous prime is 12665041. The next prime is 12665069. The reversal of 12665042 is 24056621.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (12665041) 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, 9992 + ... + 11187.

It is an arithmetic number, because the mean of its divisors is an integer number (1334340).

Almost surely, 2^12665042 is an apocalyptic number.

12665042 is a deficient number, since it is larger than the sum of its proper divisors (8684398).

12665042 is a wasteful number, since it uses less digits than its factorization.

12665042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21217.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12665042 is about 3558.7978307288. The cubic root of 12665042 is about 233.0963884941.

The spelling of 12665042 in words is "twelve million, six hundred sixty-five thousand, forty-two".