253116231 has 4 divisors (see below), whose sum is σ = 337488312. Its totient is φ = 168744152.

The previous prime is 253116211. The next prime is 253116239. The reversal of 253116231 is 132611352.

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 253116231 - 2⁶ = 253116167 is a prime.

It is a super-2 number, since 2×253116231² = 128135652791290722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253116239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42186036 + ... + 42186041.

It is an arithmetic number, because the mean of its divisors is an integer number (84372078).

Almost surely, 2^253116231 is an apocalyptic number.

253116231 is a deficient number, since it is larger than the sum of its proper divisors (84372081).

253116231 is an equidigital number, since it uses as much as digits as its factorization.

253116231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84372080.

The product of its digits is 1080, while the sum is 24.

The square root of 253116231 is about 15909.6269912277. The cubic root of 253116231 is about 632.5671941403.

Adding to 253116231 its reverse (132611352), we get a palindrome (385727583).

It can be divided in two parts, 25 and 3116231, that added together give a triangular number (3116256 = T₂₄₉₆).

The spelling of 253116231 in words is "two hundred fifty-three million, one hundred sixteen thousand, two hundred thirty-one".