1265285293 has 2 divisors, whose sum is σ = 1265285294. Its totient is φ = 1265285292.

The previous prime is 1265285279. The next prime is 1265285317. The reversal of 1265285293 is 3925825621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973627209 + 291658084 = 31203^2 + 17078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265285293 - 2¹⁷ = 1265154221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265285213) 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, 632642646 + 632642647.

It is an arithmetic number, because the mean of its divisors is an integer number (632642647).

Almost surely, 2^1265285293 is an apocalyptic number.

It is an amenable number.

1265285293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265285293 is an equidigital number, since it uses as much as digits as its factorization.

1265285293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 1265285293 is about 35570.8489215537. The cubic root of 1265285293 is about 1081.5903903495.

The spelling of 1265285293 in words is "one billion, two hundred sixty-five million, two hundred eighty-five thousand, two hundred ninety-three".