1265317 has 4 divisors (see below), whose sum is σ = 1274560. Its totient is φ = 1256076.

The previous prime is 1265311. The next prime is 1265321. The reversal of 1265317 is 7135621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7135621 = 19 ⋅375559.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265317 is a prime.

It is a super-2 number, since 2×1265317² = 3202054220978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265291 and 1265300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4413 + ... + 4690.

It is an arithmetic number, because the mean of its divisors is an integer number (318640).

2^1265317 is an apocalyptic number.

It is an amenable number.

1265317 is a deficient number, since it is larger than the sum of its proper divisors (9243).

1265317 is an equidigital number, since it uses as much as digits as its factorization.

1265317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242.

The product of its digits is 1260, while the sum is 25.

The square root of 1265317 is about 1124.8631027818. The cubic root of 1265317 is about 108.1599424860.

The spelling of 1265317 in words is "one million, two hundred sixty-five thousand, three hundred seventeen".