265457317 has 2 divisors, whose sum is σ = 265457318. Its totient is φ = 265457316.

The previous prime is 265457279. The next prime is 265457333. The reversal of 265457317 is 713754562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248819076 + 16638241 = 15774^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 265457317 - 2¹⁹ = 264933029 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265457317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265457917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132728658 + 132728659.

It is an arithmetic number, because the mean of its divisors is an integer number (132728659).

Almost surely, 2^265457317 is an apocalyptic number.

It is an amenable number.

265457317 is a deficient number, since it is larger than the sum of its proper divisors (1).

265457317 is an equidigital number, since it uses as much as digits as its factorization.

265457317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 40.

The square root of 265457317 is about 16292.8609212747. The cubic root of 265457317 is about 642.6851032426.

The spelling of 265457317 in words is "two hundred sixty-five million, four hundred fifty-seven thousand, three hundred seventeen".