12139134 has 32 divisors (see below), whose sum is σ = 27855360. Its totient is φ = 3454752.

The previous prime is 12139129. The next prime is 12139151. The reversal of 12139134 is 43193121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15967 + ... + 16709.

It is an arithmetic number, because the mean of its divisors is an integer number (870480).

Almost surely, 2^12139134 is an apocalyptic number.

12139134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12139134 is an abundant number, since it is smaller than the sum of its proper divisors (15716226).

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

12139134 is a wasteful number, since it uses less digits than its factorization.

12139134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its digits is 648, while the sum is 24.

The square root of 12139134 is about 3484.1260023139. The cubic root of 12139134 is about 229.8242766170.

The spelling of 12139134 in words is "twelve million, one hundred thirty-nine thousand, one hundred thirty-four".