1252373957 has 2 divisors, whose sum is σ = 1252373958. Its totient is φ = 1252373956.

The previous prime is 1252373939. The next prime is 1252373959. The reversal of 1252373957 is 7593732521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940710241 + 311663716 = 30671^2 + 17654^2 .

It is an emirp because it is prime and its reverse (7593732521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252373957 - 2⁶ = 1252373893 is a prime.

Together with 1252373959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252373959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626186978 + 626186979.

It is an arithmetic number, because the mean of its divisors is an integer number (626186979).

Almost surely, 2^1252373957 is an apocalyptic number.

It is an amenable number.

1252373957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252373957 is an equidigital number, since it uses as much as digits as its factorization.

1252373957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 44.

The square root of 1252373957 is about 35388.8959562177. The cubic root of 1252373957 is about 1077.8988518082.

The spelling of 1252373957 in words is "one billion, two hundred fifty-two million, three hundred seventy-three thousand, nine hundred fifty-seven".