230992261 has 2 divisors, whose sum is σ = 230992262. Its totient is φ = 230992260.

The previous prime is 230992247. The next prime is 230992273. The reversal of 230992261 is 162299032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221444161 + 9548100 = 14881^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 230992261 - 2⁷ = 230992133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230992231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115496130 + 115496131.

It is an arithmetic number, because the mean of its divisors is an integer number (115496131).

Almost surely, 2^230992261 is an apocalyptic number.

It is an amenable number.

230992261 is a deficient number, since it is larger than the sum of its proper divisors (1).

230992261 is an equidigital number, since it uses as much as digits as its factorization.

230992261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 230992261 is about 15198.4295570299. The cubic root of 230992261 is about 613.5723918121.

The spelling of 230992261 in words is "two hundred thirty million, nine hundred ninety-two thousand, two hundred sixty-one".