265197697 has 2 divisors, whose sum is σ = 265197698. Its totient is φ = 265197696.

The previous prime is 265197689. The next prime is 265197719. The reversal of 265197697 is 796791562.

It is a happy number.

265197697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265070961 + 126736 = 16281^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 265197697 - 2³ = 265197689 is a prime.

It is not a weakly prime, because it can be changed into another prime (265197607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132598848 + 132598849.

It is an arithmetic number, because the mean of its divisors is an integer number (132598849).

Almost surely, 2^265197697 is an apocalyptic number.

It is an amenable number.

265197697 is a deficient number, since it is larger than the sum of its proper divisors (1).

265197697 is an equidigital number, since it uses as much as digits as its factorization.

265197697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 52.

The square root of 265197697 is about 16284.8916790994. The cubic root of 265197697 is about 642.4755173439.

The spelling of 265197697 in words is "two hundred sixty-five million, one hundred ninety-seven thousand, six hundred ninety-seven".