12235239 has 8 divisors (see below), whose sum is σ = 18126320. Its totient is φ = 8156808.

The previous prime is 12235231. The next prime is 12235247. The reversal of 12235239 is 93253221.

It is an interprime number because it is at equal distance from previous prime (12235231) and next prime (12235247).

It is not a de Polignac number, because 12235239 - 2³ = 12235231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 453157 = 12235239 / (1 + 2 + 2 + 3 + 5 + 2 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226552 + ... + 226605.

It is an arithmetic number, because the mean of its divisors is an integer number (2265790).

Almost surely, 2^12235239 is an apocalyptic number.

12235239 is a deficient number, since it is larger than the sum of its proper divisors (5891081).

12235239 is an equidigital number, since it uses as much as digits as its factorization.

12235239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453166 (or 453160 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 12235239 is about 3497.8906500919. The cubic root of 12235239 is about 230.4291860271.

The spelling of 12235239 in words is "twelve million, two hundred thirty-five thousand, two hundred thirty-nine".