239279213 has 2 divisors, whose sum is σ = 239279214. Its totient is φ = 239279212.

The previous prime is 239279207. The next prime is 239279221. The reversal of 239279213 is 312972932.

239279213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 90878089 = 12182^2 + 9533^2 .

It is a cyclic number.

It is not a de Polignac number, because 239279213 - 2¹² = 239275117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239272213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119639606 + 119639607.

It is an arithmetic number, because the mean of its divisors is an integer number (119639607).

Almost surely, 2^239279213 is an apocalyptic number.

It is an amenable number.

239279213 is a deficient number, since it is larger than the sum of its proper divisors (1).

239279213 is an equidigital number, since it uses as much as digits as its factorization.

239279213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 239279213 is about 15468.6525916125. The cubic root of 239279213 is about 620.8237515670.

The spelling of 239279213 in words is "two hundred thirty-nine million, two hundred seventy-nine thousand, two hundred thirteen".