1253311393 has 2 divisors, whose sum is σ = 1253311394. Its totient is φ = 1253311392.

The previous prime is 1253311391. The next prime is 1253311441. The reversal of 1253311393 is 3931133521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987719184 + 265592209 = 31428^2 + 16297^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253311393 - 2¹ = 1253311391 is a prime.

Together with 1253311391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1253311391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626655696 + 626655697.

It is an arithmetic number, because the mean of its divisors is an integer number (626655697).

Almost surely, 2^1253311393 is an apocalyptic number.

It is an amenable number.

1253311393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253311393 is an equidigital number, since it uses as much as digits as its factorization.

1253311393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 31.

The square root of 1253311393 is about 35402.1382546309. The cubic root of 1253311393 is about 1078.1677302764.

The spelling of 1253311393 in words is "one billion, two hundred fifty-three million, three hundred eleven thousand, three hundred ninety-three".