253231343 has 16 divisors (see below), whose sum is σ = 268849152. Its totient is φ = 238140000.

The previous prime is 253231331. The next prime is 253231351. The reversal of 253231343 is 343132352.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 253231343 - 2⁴ = 253231327 is a prime.

It is a super-3 number, since 3×253231343³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253231843) 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 15 ways as a sum of consecutive naturals, for example, 360893 + ... + 361593.

It is an arithmetic number, because the mean of its divisors is an integer number (16803072).

Almost surely, 2^253231343 is an apocalyptic number.

253231343 is a deficient number, since it is larger than the sum of its proper divisors (15617809).

253231343 is a wasteful number, since it uses less digits than its factorization.

253231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 6480, while the sum is 26.

The square root of 253231343 is about 15913.2442638200. The cubic root of 253231343 is about 632.6630724106.

Adding to 253231343 its reverse (343132352), we get a palindrome (596363695).

The spelling of 253231343 in words is "two hundred fifty-three million, two hundred thirty-one thousand, three hundred forty-three".