12139674 has 32 divisors (see below), whose sum is σ = 25073664. Its totient is φ = 3916080.

The previous prime is 12139637. The next prime is 12139679. The reversal of 12139674 is 47693121.

12139674 = 127² + 128² + ... + 337².

It is not an unprimeable number, because it can be changed into a prime (12139679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54327 + ... + 54549.

It is an arithmetic number, because the mean of its divisors is an integer number (783552).

Almost surely, 2^12139674 is an apocalyptic number.

12139674 is an abundant number, since it is smaller than the sum of its proper divisors (12933990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12139674 is a wasteful number, since it uses less digits than its factorization.

12139674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

The product of its digits is 9072, while the sum is 33.

The square root of 12139674 is about 3484.2034957792. The cubic root of 12139674 is about 229.8276844183.

The spelling of 12139674 in words is "twelve million, one hundred thirty-nine thousand, six hundred seventy-four".