12100239 has 8 divisors (see below), whose sum is σ = 17926320. Its totient is φ = 8066808.

The previous prime is 12100229. The next prime is 12100247. The reversal of 12100239 is 93200121.

It is a happy number.

12100239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12100239 - 2⁴ = 12100223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100219) 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, 224052 + ... + 224105.

It is an arithmetic number, because the mean of its divisors is an integer number (2240790).

Almost surely, 2^12100239 is an apocalyptic number.

12100239 is a deficient number, since it is larger than the sum of its proper divisors (5826081).

12100239 is an equidigital number, since it uses as much as digits as its factorization.

12100239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448166 (or 448160 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 12100239 is about 3478.5397798502. The cubic root of 12100239 is about 229.5785539969.

The spelling of 12100239 in words is "twelve million, one hundred thousand, two hundred thirty-nine".