117178540 has 12 divisors (see below), whose sum is σ = 246074976. Its totient is φ = 46871408.

The previous prime is 117178489. The next prime is 117178541. The reversal of 117178540 is 45871711.

It is a junction number, because it is equal to n+sod(n) for n = 117178496 and 117178505.

It is not an unprimeable number, because it can be changed into a prime (117178541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2929444 + ... + 2929483.

It is an arithmetic number, because the mean of its divisors is an integer number (20506248).

Almost surely, 2^117178540 is an apocalyptic number.

117178540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117178540 is an abundant number, since it is smaller than the sum of its proper divisors (128896436).

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

117178540 is a wasteful number, since it uses less digits than its factorization.

117178540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858936 (or 5858934 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 117178540 is about 10824.9036947217. The cubic root of 117178540 is about 489.3459829299.

The spelling of 117178540 in words is "one hundred seventeen million, one hundred seventy-eight thousand, five hundred forty".