234243239 has 2 divisors, whose sum is σ = 234243240. Its totient is φ = 234243238.

The previous prime is 234243193. The next prime is 234243277. The reversal of 234243239 is 932342432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234243239 is a prime.

It is a super-2 number, since 2×234243239² = 109739790034422242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234243439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117121619 + 117121620.

It is an arithmetic number, because the mean of its divisors is an integer number (117121620).

Almost surely, 2^234243239 is an apocalyptic number.

234243239 is a deficient number, since it is larger than the sum of its proper divisors (1).

234243239 is an equidigital number, since it uses as much as digits as its factorization.

234243239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

The square root of 234243239 is about 15305.0069911778. The cubic root of 234243239 is about 616.4374589447.

The spelling of 234243239 in words is "two hundred thirty-four million, two hundred forty-three thousand, two hundred thirty-nine".