117491142 has 16 divisors (see below), whose sum is σ = 239416560. Its totient is φ = 38424672.

The previous prime is 117491141. The next prime is 117491161. The reversal of 117491142 is 241194711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117491141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184417 + ... + 185052.

It is an arithmetic number, because the mean of its divisors is an integer number (14963535).

Almost surely, 2^117491142 is an apocalyptic number.

117491142 is an abundant number, since it is smaller than the sum of its proper divisors (121925418).

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

117491142 is a wasteful number, since it uses less digits than its factorization.

117491142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369527.

The product of its digits is 2016, while the sum is 30.

The square root of 117491142 is about 10839.3330975665. Note that the first 3 decimals coincide. The cubic root of 117491142 is about 489.7807460006.

The spelling of 117491142 in words is "one hundred seventeen million, four hundred ninety-one thousand, one hundred forty-two".