253231 has 4 divisors (see below), whose sum is σ = 276264. Its totient is φ = 230200.

The previous prime is 253229. The next prime is 253243. The reversal of 253231 is 132352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253231 - 2¹ = 253229 is a prime.

It is a super-2 number, since 2×253231² = 128251878722, which contains 22 as substring.

It is a Duffinian number.

253231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253531) 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 in 3 ways as a sum of consecutive naturals, for example, 11500 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (69066).

2²⁵³²³¹ is an apocalyptic number.

253231 is a deficient number, since it is larger than the sum of its proper divisors (23033).

253231 is a wasteful number, since it uses less digits than its factorization.

253231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23032.

The product of its digits is 180, while the sum is 16.

The square root of 253231 is about 503.2206275581. The cubic root of 253231 is about 63.2662786765.

Adding to 253231 its reverse (132352), we get a palindrome (385583).

It can be divided in two parts, 253 and 231, that added together give a palindrome (484).

The spelling of 253231 in words is "two hundred fifty-three thousand, two hundred thirty-one".