12136239 has 12 divisors (see below), whose sum is σ = 18135000. Its totient is φ = 7811664.

The previous prime is 12136219. The next prime is 12136273. The reversal of 12136239 is 93263121.

It is not a de Polignac number, because 12136239 - 2⁹ = 12135727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22989 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (1511250).

Almost surely, 2^12136239 is an apocalyptic number.

12136239 is a deficient number, since it is larger than the sum of its proper divisors (5998761).

12136239 is a wasteful number, since it uses less digits than its factorization.

12136239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46534 (or 46531 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 12136239 is about 3483.7105218431. The cubic root of 12136239 is about 229.8060052922.

The spelling of 12136239 in words is "twelve million, one hundred thirty-six thousand, two hundred thirty-nine".