117190665 has 32 divisors (see below), whose sum is σ = 208794240. Its totient is φ = 62365248.

The previous prime is 117190663. The next prime is 117190679. The reversal of 117190665 is 566091711.

It is a happy number.

It is not a de Polignac number, because 117190665 - 2¹ = 117190663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117190663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103794 + ... + 104916.

It is an arithmetic number, because the mean of its divisors is an integer number (6524820).

Almost surely, 2^117190665 is an apocalyptic number.

117190665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117190665 is a deficient number, since it is larger than the sum of its proper divisors (91603575).

117190665 is a wasteful number, since it uses less digits than its factorization.

117190665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 117190665 is about 10825.4637314066. The cubic root of 117190665 is about 489.3628606375.

It can be divided in two parts, 117190 and 665, that added together give a triangular number (117855 = T₄₈₅).

The spelling of 117190665 in words is "one hundred seventeen million, one hundred ninety thousand, six hundred sixty-five".