231299 has 2 divisors, whose sum is σ = 231300. Its totient is φ = 231298.

The previous prime is 231293. The next prime is 231317. The reversal of 231299 is 992132.

231299 is nontrivially palindromic in base 16.

231299 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 a de Polignac number, because none of the positive numbers 2^k-231299 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (231293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115649 + 115650.

It is an arithmetic number, because the mean of its divisors is an integer number (115650).

2²³¹²⁹⁹ is an apocalyptic number.

231299 is a deficient number, since it is larger than the sum of its proper divisors (1).

231299 is an equidigital number, since it uses as much as digits as its factorization.

231299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 231299 is about 480.9355466172. The cubic root of 231299 is about 61.3843863152.

The spelling of 231299 in words is "two hundred thirty-one thousand, two hundred ninety-nine".