239292091 has 2 divisors, whose sum is σ = 239292092. Its totient is φ = 239292090.

The previous prime is 239292059. The next prime is 239292103. The reversal of 239292091 is 190292932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239292091 - 2⁵ = 239292059 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239292091.

It is not a weakly prime, because it can be changed into another prime (239293091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119646045 + 119646046.

It is an arithmetic number, because the mean of its divisors is an integer number (119646046).

Almost surely, 2^239292091 is an apocalyptic number.

239292091 is a deficient number, since it is larger than the sum of its proper divisors (1).

239292091 is an equidigital number, since it uses as much as digits as its factorization.

239292091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 239292091 is about 15469.0688472190. The cubic root of 239292091 is about 620.8348889390.

The spelling of 239292091 in words is "two hundred thirty-nine million, two hundred ninety-two thousand, ninety-one".