1257832253 has 2 divisors, whose sum is σ = 1257832254. Its totient is φ = 1257832252.

The previous prime is 1257832231. The next prime is 1257832309. The reversal of 1257832253 is 3522387521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883100089 + 374732164 = 29717^2 + 19358^2 .

It is an emirp because it is prime and its reverse (3522387521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1257832253 - 2¹⁰ = 1257831229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1257832453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628916126 + 628916127.

It is an arithmetic number, because the mean of its divisors is an integer number (628916127).

Almost surely, 2^1257832253 is an apocalyptic number.

It is an amenable number.

1257832253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257832253 is an equidigital number, since it uses as much as digits as its factorization.

1257832253 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1257832253 is about 35465.9308773927. The cubic root of 1257832253 is about 1079.4625392191.

The spelling of 1257832253 in words is "one billion, two hundred fifty-seven million, eight hundred thirty-two thousand, two hundred fifty-three".