240232591 has 2 divisors, whose sum is σ = 240232592. Its totient is φ = 240232590.

The previous prime is 240232589. The next prime is 240232633. The reversal of 240232591 is 195232042.

240232591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240232591 - 2¹ = 240232589 is a prime.

Together with 240232589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240232501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120116295 + 120116296.

It is an arithmetic number, because the mean of its divisors is an integer number (120116296).

Almost surely, 2^240232591 is an apocalyptic number.

240232591 is a deficient number, since it is larger than the sum of its proper divisors (1).

240232591 is an equidigital number, since it uses as much as digits as its factorization.

240232591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 240232591 is about 15499.4384091812. The cubic root of 240232591 is about 621.6471903501.

The spelling of 240232591 in words is "two hundred forty million, two hundred thirty-two thousand, five hundred ninety-one".