117171954 has 32 divisors (see below), whose sum is σ = 261426240. Its totient is φ = 38900736.

The previous prime is 117171953. The next prime is 117171991. The reversal of 117171954 is 459171711.

It is not an unprimeable number, because it can be changed into a prime (117171953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9657 + ... + 18099.

It is an arithmetic number, because the mean of its divisors is an integer number (8169570).

Almost surely, 2^117171954 is an apocalyptic number.

117171954 is an abundant number, since it is smaller than the sum of its proper divisors (144254286).

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

117171954 is a wasteful number, since it uses less digits than its factorization.

117171954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711 (or 8705 counting only the distinct ones).

The product of its digits is 8820, while the sum is 36.

The square root of 117171954 is about 10824.5994845075. The cubic root of 117171954 is about 489.3368148888.

The spelling of 117171954 in words is "one hundred seventeen million, one hundred seventy-one thousand, nine hundred fifty-four".