117124920 has 128 divisors (see below), whose sum is σ = 425952000. Its totient is φ = 28391040.

The previous prime is 117124907. The next prime is 117124957. The reversal of 117124920 is 29421711.

117124920 is a `hidden beast` number, since 1 + 171 + 2 + 492 + 0 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6951 + ... + 16809.

It is an arithmetic number, because the mean of its divisors is an integer number (3327750).

Almost surely, 2^117124920 is an apocalyptic number.

117124920 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 117124920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212976000).

117124920 is an abundant number, since it is smaller than the sum of its proper divisors (308827080).

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

117124920 is a wasteful number, since it uses less digits than its factorization.

117124920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890 (or 9880 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 117124920 is about 10822.4267149286. The cubic root of 117124920 is about 489.2713312208.

The spelling of 117124920 in words is "one hundred seventeen million, one hundred twenty-four thousand, nine hundred twenty".