117811452 has 48 divisors (see below), whose sum is σ = 301601664. Its totient is φ = 35496000.

The previous prime is 117811429. The next prime is 117811471. The reversal of 117811452 is 254118711.

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, 21427 + ... + 26357.

It is an arithmetic number, because the mean of its divisors is an integer number (6283368).

Almost surely, 2^117811452 is an apocalyptic number.

117811452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117811452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150800832).

117811452 is an abundant number, since it is smaller than the sum of its proper divisors (183790212).

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

117811452 is a wasteful number, since it uses less digits than its factorization.

117811452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130 (or 5128 counting only the distinct ones).

The product of its digits is 2240, while the sum is 30.

The square root of 117811452 is about 10854.0983964584. The cubic root of 117811452 is about 490.2254300778.

The spelling of 117811452 in words is "one hundred seventeen million, eight hundred eleven thousand, four hundred fifty-two".