117081090 has 144 divisors (see below), whose sum is σ = 358525440. Its totient is φ = 26429760.

The previous prime is 117081077. The next prime is 117081101. The reversal of 117081090 is 90180711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 612895 + ... + 613085.

It is an arithmetic number, because the mean of its divisors is an integer number (2489760).

Almost surely, 2^117081090 is an apocalyptic number.

117081090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117081090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179262720).

117081090 is an abundant number, since it is smaller than the sum of its proper divisors (241444350).

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

117081090 is a wasteful number, since it uses less digits than its factorization.

117081090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 117081090 is about 10820.4015637129. The cubic root of 117081090 is about 489.2102925794.

The spelling of 117081090 in words is "one hundred seventeen million, eighty-one thousand, ninety".