232720291 has 2 divisors, whose sum is σ = 232720292. Its totient is φ = 232720290.

The previous prime is 232720289. The next prime is 232720309. The reversal of 232720291 is 192027232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 232720291 - 2¹ = 232720289 is a prime.

Together with 232720289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (232720391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116360145 + 116360146.

It is an arithmetic number, because the mean of its divisors is an integer number (116360146).

Almost surely, 2^232720291 is an apocalyptic number.

232720291 is a deficient number, since it is larger than the sum of its proper divisors (1).

232720291 is an equidigital number, since it uses as much as digits as its factorization.

232720291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 232720291 is about 15255.1725981714. The cubic root of 232720291 is about 615.0986168338.

The spelling of 232720291 in words is "two hundred thirty-two million, seven hundred twenty thousand, two hundred ninety-one".