1165265 has 8 divisors (see below), whose sum is σ = 1480680. Its totient is φ = 877312.

The previous prime is 1165223. The next prime is 1165273. The reversal of 1165265 is 5625611.

It can be written as a sum of positive squares in 4 ways, for example, as 452929 + 712336 = 673^2 + 844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165265 - 2⁶ = 1165201 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6770 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (185085).

2^1165265 is an apocalyptic number.

It is an amenable number.

1165265 is a deficient number, since it is larger than the sum of its proper divisors (315415).

1165265 is a wasteful number, since it uses less digits than its factorization.

1165265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13731.

The product of its digits is 1800, while the sum is 26.

The square root of 1165265 is about 1079.4744091455. The cubic root of 1165265 is about 105.2304838721.

The spelling of 1165265 in words is "one million, one hundred sixty-five thousand, two hundred sixty-five".