265265140297 has 2 divisors, whose sum is σ = 265265140298. Its totient is φ = 265265140296.

The previous prime is 265265140237. The next prime is 265265140307. The reversal of 265265140297 is 792041562562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265262081296 + 3059001 = 515036^2 + 1749^2 .

It is a cyclic number.

It is not a de Polignac number, because 265265140297 - 2⁷ = 265265140169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265265140297.

It is not a weakly prime, because it can be changed into another prime (265265140237) 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, 132632570148 + 132632570149.

It is an arithmetic number, because the mean of its divisors is an integer number (132632570149).

Almost surely, 2^265265140297 is an apocalyptic number.

It is an amenable number.

265265140297 is a deficient number, since it is larger than the sum of its proper divisors (1).

265265140297 is an equidigital number, since it uses as much as digits as its factorization.

265265140297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 265265140297 in words is "two hundred sixty-five billion, two hundred sixty-five million, one hundred forty thousand, two hundred ninety-seven".