117309180 has 96 divisors (see below), whose sum is σ = 355332096. Its totient is φ = 28804096.

The previous prime is 117309167. The next prime is 117309187. The reversal of 117309180 is 81903711.

It is a super-2 number, since 2×117309180² = 27522887424544800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117309187) 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, 46717 + ... + 49163.

It is an arithmetic number, because the mean of its divisors is an integer number (3701376).

Almost surely, 2^117309180 is an apocalyptic number.

117309180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117309180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177666048).

117309180 is an abundant number, since it is smaller than the sum of its proper divisors (238022916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117309180 is a wasteful number, since it uses less digits than its factorization.

117309180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523 (or 2521 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 117309180 is about 10830.9362476196. The cubic root of 117309180 is about 489.5277693916.

It can be divided in two parts, 11730 and 9180, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 117309180 in words is "one hundred seventeen million, three hundred nine thousand, one hundred eighty".