231359 has 2 divisors, whose sum is σ = 231360. Its totient is φ = 231358.

The previous prime is 231349. The next prime is 231367. The reversal of 231359 is 953132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231349) 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, 115679 + 115680.

It is an arithmetic number, because the mean of its divisors is an integer number (115680).

2²³¹³⁵⁹ is an apocalyptic number.

231359 is a deficient number, since it is larger than the sum of its proper divisors (1).

231359 is an equidigital number, since it uses as much as digits as its factorization.

231359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 23.

The square root of 231359 is about 480.9979209934. The cubic root of 231359 is about 61.3896936515.

The spelling of 231359 in words is "two hundred thirty-one thousand, three hundred fifty-nine".