117090900 has 144 divisors (see below), whose sum is σ = 398724480. Its totient is φ = 29376000.

The previous prime is 117090889. The next prime is 117090923. The reversal of 117090900 is 9090711.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44625 + ... + 47175.

It is an arithmetic number, because the mean of its divisors is an integer number (2768920).

Almost surely, 2^117090900 is an apocalyptic number.

117090900 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 117090900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199362240).

117090900 is an abundant number, since it is smaller than the sum of its proper divisors (281633580).

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

117090900 is a wasteful number, since it uses less digits than its factorization.

117090900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 117090900 is about 10820.8548645659. The cubic root of 117090900 is about 489.2239555285.

The spelling of 117090900 in words is "one hundred seventeen million, ninety thousand, nine hundred".