1252341532457 has 2 divisors, whose sum is σ = 1252341532458. Its totient is φ = 1252341532456.

The previous prime is 1252341532399. The next prime is 1252341532489. The reversal of 1252341532457 is 7542351432521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220017447936 + 32324084521 = 1104544^2 + 179789^2 .

It is an emirp because it is prime and its reverse (7542351432521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252341532457 - 2¹⁰ = 1252341531433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252341522457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626170766228 + 626170766229.

It is an arithmetic number, because the mean of its divisors is an integer number (626170766229).

Almost surely, 2^{1252341532457} is an apocalyptic number.

It is an amenable number.

1252341532457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252341532457 is an equidigital number, since it uses as much as digits as its factorization.

1252341532457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008000, while the sum is 44.

Adding to 1252341532457 its reverse (7542351432521), we get a palindrome (8794692964978).

The spelling of 1252341532457 in words is "one trillion, two hundred fifty-two billion, three hundred forty-one million, five hundred thirty-two thousand, four hundred fifty-seven".