213330239 has 2 divisors, whose sum is σ = 213330240. Its totient is φ = 213330238.

The previous prime is 213330209. The next prime is 213330259. The reversal of 213330239 is 932033312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213330239 - 2⁸ = 213329983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213330209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665119 + 106665120.

It is an arithmetic number, because the mean of its divisors is an integer number (106665120).

Almost surely, 2^213330239 is an apocalyptic number.

213330239 is a deficient number, since it is larger than the sum of its proper divisors (1).

213330239 is an equidigital number, since it uses as much as digits as its factorization.

213330239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 213330239 is about 14605.8289391599. The cubic root of 213330239 is about 597.5177439103.

The spelling of 213330239 in words is "two hundred thirteen million, three hundred thirty thousand, two hundred thirty-nine".