117491100 has 72 divisors (see below), whose sum is σ = 343155120. Its totient is φ = 31034880.

The previous prime is 117491083. The next prime is 117491141. The reversal of 117491100 is 1194711.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 30904 + ... + 34496.

Almost surely, 2^117491100 is an apocalyptic number.

117491100 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 117491100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171577560).

117491100 is an abundant number, since it is smaller than the sum of its proper divisors (225664020).

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

117491100 is a wasteful number, since it uses less digits than its factorization.

117491100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 117491100 is about 10839.3311601777. The cubic root of 117491100 is about 489.7806876393.

The spelling of 117491100 in words is "one hundred seventeen million, four hundred ninety-one thousand, one hundred".