253530136231 has 2 divisors, whose sum is σ = 253530136232. Its totient is φ = 253530136230.

The previous prime is 253530136229. The next prime is 253530136243. The reversal of 253530136231 is 132631035352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253530136231 - 2¹ = 253530136229 is a prime.

It is a super-2 number, since 2×253530136231² (a number of 24 digits) contains 22 as substring.

Together with 253530136229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253530136291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126765068115 + 126765068116.

It is an arithmetic number, because the mean of its divisors is an integer number (126765068116).

Almost surely, 2^253530136231 is an apocalyptic number.

253530136231 is a deficient number, since it is larger than the sum of its proper divisors (1).

253530136231 is an equidigital number, since it uses as much as digits as its factorization.

253530136231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 34.

The spelling of 253530136231 in words is "two hundred fifty-three billion, five hundred thirty million, one hundred thirty-six thousand, two hundred thirty-one".