1265315 has 4 divisors (see below), whose sum is σ = 1518384. Its totient is φ = 1012248.

The previous prime is 1265311. The next prime is 1265321. The reversal of 1265315 is 5135621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1265315 - 2² = 1265311 is a prime.

It is a Duffinian 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, 126527 + ... + 126536.

It is an arithmetic number, because the mean of its divisors is an integer number (379596).

2^1265315 is an apocalyptic number.

1265315 is a deficient number, since it is larger than the sum of its proper divisors (253069).

1265315 is an equidigital number, since it uses as much as digits as its factorization.

1265315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253068.

The product of its digits is 900, while the sum is 23.

The square root of 1265315 is about 1124.8622137844. The cubic root of 1265315 is about 108.1598854990.

The spelling of 1265315 in words is "one million, two hundred sixty-five thousand, three hundred fifteen".