117164140 has 24 divisors (see below), whose sum is σ = 246964032. Its totient is φ = 46690560.

The previous prime is 117164123. The next prime is 117164143. The reversal of 117164140 is 41461711.

It is not an unprimeable number, because it can be changed into a prime (117164143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5389 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (10290168).

Almost surely, 2^117164140 is an apocalyptic number.

117164140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117164140 is an abundant number, since it is smaller than the sum of its proper divisors (129799892).

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

117164140 is a wasteful number, since it uses less digits than its factorization.

117164140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21897 (or 21895 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 117164140 is about 10824.2385413478. The cubic root of 117164140 is about 489.3259369646.

The spelling of 117164140 in words is "one hundred seventeen million, one hundred sixty-four thousand, one hundred forty".