1252313224157 has 2 divisors, whose sum is σ = 1252313224158. Its totient is φ = 1252313224156.

The previous prime is 1252313224079. The next prime is 1252313224163. The reversal of 1252313224157 is 7514223132521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1205371235236 + 46941988921 = 1097894^2 + 216661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252313224157 - 2¹⁴ = 1252313207773 is a prime.

It is a super-2 number, since 2×1252313224157² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1252313224157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252313224177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626156612078 + 626156612079.

It is an arithmetic number, because the mean of its divisors is an integer number (626156612079).

Almost surely, 2^{1252313224157} is an apocalyptic number.

It is an amenable number.

1252313224157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252313224157 is an equidigital number, since it uses as much as digits as its factorization.

1252313224157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

Adding to 1252313224157 its reverse (7514223132521), we get a palindrome (8766536356678).

The spelling of 1252313224157 in words is "one trillion, two hundred fifty-two billion, three hundred thirteen million, two hundred twenty-four thousand, one hundred fifty-seven".