117321845 has 16 divisors (see below), whose sum is σ = 152539200. Its totient is φ = 86279424.

The previous prime is 117321833. The next prime is 117321851. The reversal of 117321845 is 548123711.

It is a cyclic number.

It is not a de Polignac number, because 117321845 - 2⁴ = 117321829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12395 + ... + 19704.

It is an arithmetic number, because the mean of its divisors is an integer number (9533700).

Almost surely, 2^117321845 is an apocalyptic number.

It is an amenable number.

117321845 is a deficient number, since it is larger than the sum of its proper divisors (35217355).

117321845 is a wasteful number, since it uses less digits than its factorization.

117321845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32164.

The product of its digits is 6720, while the sum is 32.

The square root of 117321845 is about 10831.5208996706. The cubic root of 117321845 is about 489.5453856489.

The spelling of 117321845 in words is "one hundred seventeen million, three hundred twenty-one thousand, eight hundred forty-five".