1252285361 has 2 divisors, whose sum is σ = 1252285362. Its totient is φ = 1252285360.

The previous prime is 1252285339. The next prime is 1252285379. The reversal of 1252285361 is 1635822521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1060739761 + 191545600 = 32569^2 + 13840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252285361 - 2²⁶ = 1185176497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252288361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626142680 + 626142681.

It is an arithmetic number, because the mean of its divisors is an integer number (626142681).

Almost surely, 2^1252285361 is an apocalyptic number.

It is an amenable number.

1252285361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252285361 is an equidigital number, since it uses as much as digits as its factorization.

1252285361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 1252285361 is about 35387.6441855063. The cubic root of 1252285361 is about 1077.8734334742.

The spelling of 1252285361 in words is "one billion, two hundred fifty-two million, two hundred eighty-five thousand, three hundred sixty-one".