253344631 has 2 divisors, whose sum is σ = 253344632. Its totient is φ = 253344630.

The previous prime is 253344599. The next prime is 253344677. The reversal of 253344631 is 136443352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253344631 - 2⁵ = 253344599 is a prime.

It is a super-2 number, since 2×253344631² = 128367004113052322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_13852228 and since 253344631 and 13852228 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 253344593 and 253344602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253344331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126672315 + 126672316.

It is an arithmetic number, because the mean of its divisors is an integer number (126672316).

Almost surely, 2^253344631 is an apocalyptic number.

253344631 is a deficient number, since it is larger than the sum of its proper divisors (1).

253344631 is an equidigital number, since it uses as much as digits as its factorization.

253344631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 31.

The square root of 253344631 is about 15916.8034165155. The cubic root of 253344631 is about 632.7574030831.

Adding to 253344631 its reverse (136443352), we get a palindrome (389787983).

The spelling of 253344631 in words is "two hundred fifty-three million, three hundred forty-four thousand, six hundred thirty-one".