117565765 has 32 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 87284736.

The previous prime is 117565759. The next prime is 117565793. The reversal of 117565765 is 567565711.

It is a cyclic number.

It is not a de Polignac number, because 117565765 - 2²³ = 109177157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1040349 + ... + 1040461.

It is an arithmetic number, because the mean of its divisors is an integer number (4740120).

Almost surely, 2^117565765 is an apocalyptic number.

It is an amenable number.

117565765 is a deficient number, since it is larger than the sum of its proper divisors (34118075).

117565765 is a wasteful number, since it uses less digits than its factorization.

117565765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333.

The product of its digits is 220500, while the sum is 43.

The square root of 117565765 is about 10842.7747832370. The cubic root of 117565765 is about 489.8844167195.

The spelling of 117565765 in words is "one hundred seventeen million, five hundred sixty-five thousand, seven hundred sixty-five".