12979142 has 16 divisors (see below), whose sum is σ = 21924864. Its totient is φ = 5709000.

The previous prime is 12979139. The next prime is 12979151. The reversal of 12979142 is 24197921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8834 + ... + 10197.

It is an arithmetic number, because the mean of its divisors is an integer number (1370304).

Almost surely, 2^12979142 is an apocalyptic number.

12979142 is a deficient number, since it is larger than the sum of its proper divisors (8945722).

12979142 is a wasteful number, since it uses less digits than its factorization.

12979142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19075.

The product of its digits is 9072, while the sum is 35.

The square root of 12979142 is about 3602.6576301392. The cubic root of 12979142 is about 235.0076472538.

The spelling of 12979142 in words is "twelve million, nine hundred seventy-nine thousand, one hundred forty-two".