659231 has 2 divisors, whose sum is σ = 659232. Its totient is φ = 659230.

The previous prime is 659221. The next prime is 659237. The reversal of 659231 is 132956.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-659231 is a prime.

It is a super-2 number, since 2×659231² = 869171022722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 659231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329615 + 329616.

It is an arithmetic number, because the mean of its divisors is an integer number (329616).

2⁶⁵⁹²³¹ is an apocalyptic number.

659231 is a deficient number, since it is larger than the sum of its proper divisors (1).

659231 is an equidigital number, since it uses as much as digits as its factorization.

659231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 659231 is about 811.9304157377. The cubic root of 659231 is about 87.0320487906.

The spelling of 659231 in words is "six hundred fifty-nine thousand, two hundred thirty-one".