264210239 has 2 divisors, whose sum is σ = 264210240. Its totient is φ = 264210238.

The previous prime is 264210203. The next prime is 264210251. The reversal of 264210239 is 932012462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264210239 - 2¹² = 264206143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264210139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132105119 + 132105120.

It is an arithmetic number, because the mean of its divisors is an integer number (132105120).

Almost surely, 2^264210239 is an apocalyptic number.

264210239 is a deficient number, since it is larger than the sum of its proper divisors (1).

264210239 is an equidigital number, since it uses as much as digits as its factorization.

264210239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 264210239 is about 16254.5451797336. The cubic root of 264210239 is about 641.6771109186.

The spelling of 264210239 in words is "two hundred sixty-four million, two hundred ten thousand, two hundred thirty-nine".