117505765 has 8 divisors (see below), whose sum is σ = 151853688. Its totient is φ = 86773440.

The previous prime is 117505763. The next prime is 117505769. The reversal of 117505765 is 567505711.

It can be written as a sum of positive squares in 4 ways, for example, as 887364 + 116618401 = 942^2 + 10799^2 .

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

It is not a de Polignac number, because 117505765 - 2¹ = 117505763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117505763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903826 + ... + 903955.

It is an arithmetic number, because the mean of its divisors is an integer number (18981711).

Almost surely, 2^117505765 is an apocalyptic number.

It is an amenable number.

117505765 is a deficient number, since it is larger than the sum of its proper divisors (34347923).

117505765 is a wasteful number, since it uses less digits than its factorization.

117505765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807799.

The product of its (nonzero) digits is 36750, while the sum is 37.

The square root of 117505765 is about 10840.0076106984. The cubic root of 117505765 is about 489.8010646011.

The spelling of 117505765 in words is "one hundred seventeen million, five hundred five thousand, seven hundred sixty-five".