1117275565 has 16 divisors (see below), whose sum is σ = 1533408768. Its totient is φ = 765559296.

The previous prime is 1117275559. The next prime is 1117275571. The reversal of 1117275565 is 5655727111.

It is an interprime number because it is at equal distance from previous prime (1117275559) and next prime (1117275571).

It is a cyclic number.

It is not a de Polignac number, because 1117275565 - 2⁷ = 1117275437 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 38589 + ... + 61021.

It is an arithmetic number, because the mean of its divisors is an integer number (95838048).

Almost surely, 2^1117275565 is an apocalyptic number.

It is an amenable number.

1117275565 is a deficient number, since it is larger than the sum of its proper divisors (416133203).

1117275565 is a wasteful number, since it uses less digits than its factorization.

1117275565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868.

The product of its digits is 73500, while the sum is 40.

The square root of 1117275565 is about 33425.6722445488. The cubic root of 1117275565 is about 1037.6560763888.

The spelling of 1117275565 in words is "one billion, one hundred seventeen million, two hundred seventy-five thousand, five hundred sixty-five".