1265597 has 2 divisors, whose sum is σ = 1265598. Its totient is φ = 1265596.

The previous prime is 1265581. The next prime is 1265603. The reversal of 1265597 is 7955621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 139876 = 1061^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265597 - 2⁴ = 1265581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632798 + 632799.

It is an arithmetic number, because the mean of its divisors is an integer number (632799).

2^1265597 is an apocalyptic number.

It is an amenable number.

1265597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265597 is an equidigital number, since it uses as much as digits as its factorization.

1265597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 1265597 is about 1124.9875554867. The cubic root of 1265597 is about 108.1679200785.

The spelling of 1265597 in words is "one million, two hundred sixty-five thousand, five hundred ninety-seven".