1252765153 has 2 divisors, whose sum is σ = 1252765154. Its totient is φ = 1252765152.

The previous prime is 1252765147. The next prime is 1252765193. The reversal of 1252765153 is 3515672521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1231448464 + 21316689 = 35092^2 + 4617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252765153 is a prime.

It is a super-2 number, since 2×1252765153² = 3138841057142226818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1252765193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626382576 + 626382577.

It is an arithmetic number, because the mean of its divisors is an integer number (626382577).

Almost surely, 2^1252765153 is an apocalyptic number.

It is an amenable number.

1252765153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252765153 is an equidigital number, since it uses as much as digits as its factorization.

1252765153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 37.

The square root of 1252765153 is about 35394.4226256059. The cubic root of 1252765153 is about 1078.0110722356.

The spelling of 1252765153 in words is "one billion, two hundred fifty-two million, seven hundred sixty-five thousand, one hundred fifty-three".