12669142 has 16 divisors (see below), whose sum is σ = 19723392. Its totient is φ = 6096960.

The previous prime is 12669127. The next prime is 12669161. The reversal of 12669142 is 24196621.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14008 + ... + 14884.

It is an arithmetic number, because the mean of its divisors is an integer number (1232712).

Almost surely, 2^12669142 is an apocalyptic number.

12669142 is a deficient number, since it is larger than the sum of its proper divisors (7054250).

12669142 is a wasteful number, since it uses less digits than its factorization.

12669142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its digits is 5184, while the sum is 31.

The square root of 12669142 is about 3559.3738213343. The cubic root of 12669142 is about 233.1215388801.

The spelling of 12669142 in words is "twelve million, six hundred sixty-nine thousand, one hundred forty-two".