117090999 has 48 divisors (see below), whose sum is σ = 185462784. Its totient is φ = 70963200.

The previous prime is 117090997. The next prime is 117091031. The reversal of 117090999 is 999090711.

It is not a de Polignac number, because 117090999 - 2¹ = 117090997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117090997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455479 + ... + 455735.

It is an arithmetic number, because the mean of its divisors is an integer number (3863808).

Almost surely, 2^117090999 is an apocalyptic number.

117090999 is a deficient number, since it is larger than the sum of its proper divisors (68371785).

117090999 is a wasteful number, since it uses less digits than its factorization.

117090999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 45.

The square root of 117090999 is about 10820.8594390649. The cubic root of 117090999 is about 489.2240934076.

The spelling of 117090999 in words is "one hundred seventeen million, ninety thousand, nine hundred ninety-nine".