252245623129 has 2 divisors, whose sum is σ = 252245623130. Its totient is φ = 252245623128.

The previous prime is 252245623081. The next prime is 252245623159. The reversal of 252245623129 is 921326542252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237203091225 + 15042531904 = 487035^2 + 122648^2 .

It is a cyclic number.

It is not a de Polignac number, because 252245623129 - 2⁷ = 252245623001 is a prime.

It is a super-3 number, since 3×252245623129³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (252245623159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126122811564 + 126122811565.

It is an arithmetic number, because the mean of its divisors is an integer number (126122811565).

Almost surely, 2^252245623129 is an apocalyptic number.

It is an amenable number.

252245623129 is a deficient number, since it is larger than the sum of its proper divisors (1).

252245623129 is an equidigital number, since it uses as much as digits as its factorization.

252245623129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The spelling of 252245623129 in words is "two hundred fifty-two billion, two hundred forty-five million, six hundred twenty-three thousand, one hundred twenty-nine".