12152239 has 4 divisors (see below), whose sum is σ = 13257000. Its totient is φ = 11047480.

The previous prime is 12152233. The next prime is 12152251. The reversal of 12152239 is 93225121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12152239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552364 + ... + 552385.

It is an arithmetic number, because the mean of its divisors is an integer number (3314250).

Almost surely, 2^12152239 is an apocalyptic number.

12152239 is a deficient number, since it is larger than the sum of its proper divisors (1104761).

12152239 is a wasteful number, since it uses less digits than its factorization.

12152239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104760.

The product of its digits is 1080, while the sum is 25.

The square root of 12152239 is about 3486.0061675218. The cubic root of 12152239 is about 229.9069503883.

It can be divided in two parts, 12 and 152239, that added together give a palindrome (152251).

The spelling of 12152239 in words is "twelve million, one hundred fifty-two thousand, two hundred thirty-nine".