265257133 has 2 divisors, whose sum is σ = 265257134. Its totient is φ = 265257132.

The previous prime is 265257131. The next prime is 265257191. The reversal of 265257133 is 331752562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239073444 + 26183689 = 15462^2 + 5117^2 .

It is a cyclic number.

It is not a de Polignac number, because 265257133 - 2¹ = 265257131 is a prime.

It is a super-2 number, since 2×265257133² = 140722693214759378, which contains 22 as substring.

Together with 265257131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265257131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132628566 + 132628567.

It is an arithmetic number, because the mean of its divisors is an integer number (132628567).

Almost surely, 2^265257133 is an apocalyptic number.

It is an amenable number.

265257133 is a deficient number, since it is larger than the sum of its proper divisors (1).

265257133 is an equidigital number, since it uses as much as digits as its factorization.

265257133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The square root of 265257133 is about 16286.7164585131. The cubic root of 265257133 is about 642.5235108759.

The spelling of 265257133 in words is "two hundred sixty-five million, two hundred fifty-seven thousand, one hundred thirty-three".