117305812 has 48 divisors (see below), whose sum is σ = 231154560. Its totient is φ = 51714432.

The previous prime is 117305807. The next prime is 117305813. The reversal of 117305812 is 218503711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117305813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160993 + ... + 161719.

It is an arithmetic number, because the mean of its divisors is an integer number (4815720).

Almost surely, 2^117305812 is an apocalyptic number.

It is an amenable number.

117305812 is a deficient number, since it is larger than the sum of its proper divisors (113848748).

117305812 is a wasteful number, since it uses less digits than its factorization.

117305812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 117305812 is about 10830.7807659467. The cubic root of 117305812 is about 489.5230844916.

The spelling of 117305812 in words is "one hundred seventeen million, three hundred five thousand, eight hundred twelve".