117161212 has 48 divisors (see below), whose sum is σ = 250665408. Its totient is φ = 46771200.

The previous prime is 117161207. The next prime is 117161227. The reversal of 117161212 is 212161711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46858 + ... + 49294.

It is an arithmetic number, because the mean of its divisors is an integer number (5222196).

Almost surely, 2^117161212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117161212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125332704).

117161212 is an abundant number, since it is smaller than the sum of its proper divisors (133504196).

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

117161212 is a wasteful number, since it uses less digits than its factorization.

117161212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2564 counting only the distinct ones).

The product of its digits is 168, while the sum is 22.

The square root of 117161212 is about 10824.1032884946. The cubic root of 117161212 is about 489.3218607508.

The spelling of 117161212 in words is "one hundred seventeen million, one hundred sixty-one thousand, two hundred twelve".