239992061 has 2 divisors, whose sum is σ = 239992062. Its totient is φ = 239992060.

The previous prime is 239992037. The next prime is 239992069. The reversal of 239992061 is 160299932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238084900 + 1907161 = 15430^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 239992061 - 2¹⁴ = 239975677 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 (239992069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119996030 + 119996031.

It is an arithmetic number, because the mean of its divisors is an integer number (119996031).

Almost surely, 2^239992061 is an apocalyptic number.

It is an amenable number.

239992061 is a deficient number, since it is larger than the sum of its proper divisors (1).

239992061 is an equidigital number, since it uses as much as digits as its factorization.

239992061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 239992061 is about 15491.6771525874. The cubic root of 239992061 is about 621.4396488044.

The spelling of 239992061 in words is "two hundred thirty-nine million, nine hundred ninety-two thousand, sixty-one".