117881142 has 8 divisors (see below), whose sum is σ = 235762296. Its totient is φ = 39293712.

The previous prime is 117881117. The next prime is 117881161. The reversal of 117881142 is 241188711.

It is a sphenic number, since it is the product of 3 distinct primes.

117881142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9823423 + ... + 9823434.

It is an arithmetic number, because the mean of its divisors is an integer number (29470287).

Almost surely, 2^117881142 is an apocalyptic number.

117881142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

117881142 is a wasteful number, since it uses less digits than its factorization.

117881142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19646862.

The product of its digits is 3584, while the sum is 33.

The square root of 117881142 is about 10857.3082299436. The cubic root of 117881142 is about 490.3220734161.

The spelling of 117881142 in words is "one hundred seventeen million, eight hundred eighty-one thousand, one hundred forty-two".