1164528265 has 4 divisors (see below), whose sum is σ = 1397433924. Its totient is φ = 931622608.

The previous prime is 1164528227. The next prime is 1164528293. The reversal of 1164528265 is 5628254611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 789834816 + 374693449 = 28104^2 + 19357^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164528265 - 2⁹ = 1164527753 is a prime.

It is a super-2 number, since 2×1164528265² = 2712252159967820450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116452822 + ... + 116452831.

It is an arithmetic number, because the mean of its divisors is an integer number (349358481).

Almost surely, 2^1164528265 is an apocalyptic number.

It is an amenable number.

1164528265 is a deficient number, since it is larger than the sum of its proper divisors (232905659).

1164528265 is an equidigital number, since it uses as much as digits as its factorization.

1164528265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232905658.

The product of its digits is 115200, while the sum is 40.

The square root of 1164528265 is about 34125.1852009626. The cubic root of 1164528265 is about 1052.0830198642.

The spelling of 1164528265 in words is "one billion, one hundred sixty-four million, five hundred twenty-eight thousand, two hundred sixty-five".