232990291 has 2 divisors, whose sum is σ = 232990292. Its totient is φ = 232990290.

The previous prime is 232990267. The next prime is 232990301. The reversal of 232990291 is 192099232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232990291 - 2²³ = 224601683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232990291.

It is not a weakly prime, because it can be changed into another prime (232990201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116495145 + 116495146.

It is an arithmetic number, because the mean of its divisors is an integer number (116495146).

Almost surely, 2^232990291 is an apocalyptic number.

232990291 is a deficient number, since it is larger than the sum of its proper divisors (1).

232990291 is an equidigital number, since it uses as much as digits as its factorization.

232990291 is an odious number, because the sum of its binary digits is odd.

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

The square root of 232990291 is about 15264.0194902915. The cubic root of 232990291 is about 615.3364022031.

The spelling of 232990291 in words is "two hundred thirty-two million, nine hundred ninety thousand, two hundred ninety-one".