252313142491 has 2 divisors, whose sum is σ = 252313142492. Its totient is φ = 252313142490.

The previous prime is 252313142479. The next prime is 252313142569. The reversal of 252313142491 is 194241313252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252313142491 - 2⁷ = 252313142363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252313142491.

It is not a weakly prime, because it can be changed into another prime (252313142461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126156571245 + 126156571246.

It is an arithmetic number, because the mean of its divisors is an integer number (126156571246).

Almost surely, 2^252313142491 is an apocalyptic number.

252313142491 is a deficient number, since it is larger than the sum of its proper divisors (1).

252313142491 is an equidigital number, since it uses as much as digits as its factorization.

252313142491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The spelling of 252313142491 in words is "two hundred fifty-two billion, three hundred thirteen million, one hundred forty-two thousand, four hundred ninety-one".