117103865 has 4 divisors (see below), whose sum is σ = 140524644. Its totient is φ = 93683088.

The previous prime is 117103829. The next prime is 117103919. The reversal of 117103865 is 568301711.

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 59783824 + 57320041 = 7732^2 + 7571^2 .

It is a cyclic number.

It is not a de Polignac number, because 117103865 - 2¹² = 117099769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11710382 + ... + 11710391.

It is an arithmetic number, because the mean of its divisors is an integer number (35131161).

Almost surely, 2^117103865 is an apocalyptic number.

It is an amenable number.

117103865 is a deficient number, since it is larger than the sum of its proper divisors (23420779).

117103865 is an equidigital number, since it uses as much as digits as its factorization.

117103865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23420778.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 117103865 is about 10821.4539226483. The cubic root of 117103865 is about 489.2420114563.

The spelling of 117103865 in words is "one hundred seventeen million, one hundred three thousand, eight hundred sixty-five".