232591 has 2 divisors, whose sum is σ = 232592. Its totient is φ = 232590.

The previous prime is 232571. The next prime is 232597. The reversal of 232591 is 195232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232591 - 2⁹ = 232079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116295 + 116296.

It is an arithmetic number, because the mean of its divisors is an integer number (116296).

2²³²⁵⁹¹ is an apocalyptic number.

232591 is a deficient number, since it is larger than the sum of its proper divisors (1).

232591 is an equidigital number, since it uses as much as digits as its factorization.

232591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 232591 is about 482.2768914223. The cubic root of 232591 is about 61.4984686864.

It can be divided in two parts, 2325 and 91, that multiplied together give a triangular number (211575 = T₆₅₀).

The spelling of 232591 in words is "two hundred thirty-two thousand, five hundred ninety-one".