231297 has 16 divisors (see below), whose sum is σ = 346368. Its totient is φ = 136080.

The previous prime is 231293. The next prime is 231299. The reversal of 231297 is 792132.

It is not a de Polignac number, because 231297 - 2² = 231293 is a prime.

231297 is a modest number, since divided by 297 gives 231 as remainder.

It is not an unprimeable number, because it can be changed into a prime (231293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338 + ... + 1500.

It is an arithmetic number, because the mean of its divisors is an integer number (21648).

2²³¹²⁹⁷ is an apocalyptic number.

It is an amenable number.

231297 is a deficient number, since it is larger than the sum of its proper divisors (115071).

231297 is a wasteful number, since it uses less digits than its factorization.

231297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its digits is 756, while the sum is 24.

The square root of 231297 is about 480.9334673320. The cubic root of 231297 is about 61.3842093882.

It can be divided in two parts, 231 and 297, that added together give a triangular number (528 = T₃₂).

The spelling of 231297 in words is "two hundred thirty-one thousand, two hundred ninety-seven".