117211830 has 16 divisors (see below), whose sum is σ = 281308464. Its totient is φ = 31256480.

The previous prime is 117211781. The next prime is 117211847. The reversal of 117211830 is 38112711.

It is a happy number.

It is a super-2 number, since 2×117211830² = 27477226183897800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117211830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953501 + ... + 1953560.

It is an arithmetic number, because the mean of its divisors is an integer number (17581779).

Almost surely, 2^117211830 is an apocalyptic number.

117211830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117211830 is an abundant number, since it is smaller than the sum of its proper divisors (164096634).

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

117211830 is a wasteful number, since it uses less digits than its factorization.

117211830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907071.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 117211830 is about 10826.4412435481. The cubic root of 117211830 is about 489.3923190177.

The spelling of 117211830 in words is "one hundred seventeen million, two hundred eleven thousand, eight hundred thirty".