117812 has 6 divisors (see below), whose sum is σ = 206178. Its totient is φ = 58904.

The previous prime is 117811. The next prime is 117833. The reversal of 117812 is 218711.

It can be written as a sum of positive squares in only one way, i.e., 99856 + 17956 = 316^2 + 134^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14723 + ... + 14730.

It is an arithmetic number, because the mean of its divisors is an integer number (34363).

2¹¹⁷⁸¹² is an apocalyptic number.

It is an amenable number.

117812 is a deficient number, since it is larger than the sum of its proper divisors (88366).

117812 is a wasteful number, since it uses less digits than its factorization.

117812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29457 (or 29455 counting only the distinct ones).

The product of its digits is 112, while the sum is 20.

The square root of 117812 is about 343.2375270858. The cubic root of 117812 is about 49.0226190171.

It can be divided in two parts, 117 and 812, that added together give a palindrome (929).

The spelling of 117812 in words is "one hundred seventeen thousand, eight hundred twelve".