239184013 has 2 divisors, whose sum is σ = 239184014. Its totient is φ = 239184012.

The previous prime is 239183983. The next prime is 239184031. The reversal of 239184013 is 310481932.

Together with next prime (239184031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212372329 + 26811684 = 14573^2 + 5178^2 .

It is a cyclic number.

It is not a de Polignac number, because 239184013 - 2⁵ = 239183981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239184073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119592006 + 119592007.

It is an arithmetic number, because the mean of its divisors is an integer number (119592007).

Almost surely, 2^239184013 is an apocalyptic number.

It is an amenable number.

239184013 is a deficient number, since it is larger than the sum of its proper divisors (1).

239184013 is an equidigital number, since it uses as much as digits as its factorization.

239184013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 239184013 is about 15465.5750943830. The cubic root of 239184013 is about 620.7414066775.

The spelling of 239184013 in words is "two hundred thirty-nine million, one hundred eighty-four thousand, thirteen".