239072069 has 2 divisors, whose sum is σ = 239072070. Its totient is φ = 239072068.

The previous prime is 239072017. The next prime is 239072081. The reversal of 239072069 is 960270932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139830625 + 99241444 = 11825^2 + 9962^2 .

It is a cyclic number.

It is not a de Polignac number, because 239072069 - 2²⁰ = 238023493 is a prime.

It is a super-2 number, since 2×239072069² = 114310908351881522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239072569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119536034 + 119536035.

It is an arithmetic number, because the mean of its divisors is an integer number (119536035).

Almost surely, 2^239072069 is an apocalyptic number.

It is an amenable number.

239072069 is a deficient number, since it is larger than the sum of its proper divisors (1).

239072069 is an equidigital number, since it uses as much as digits as its factorization.

239072069 is an evil number, because the sum of its binary digits is even.

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

The square root of 239072069 is about 15461.9555360892. The cubic root of 239072069 is about 620.6445508178.

The spelling of 239072069 in words is "two hundred thirty-nine million, seventy-two thousand, sixty-nine".