117273138 has 8 divisors (see below), whose sum is σ = 234546288. Its totient is φ = 39091044.

The previous prime is 117273137. The next prime is 117273151. The reversal of 117273138 is 831372711.

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

117273138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 117273099 and 117273108.

It is not an unprimeable number, because it can be changed into a prime (117273137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9772756 + ... + 9772767.

It is an arithmetic number, because the mean of its divisors is an integer number (29318286).

Almost surely, 2^117273138 is an apocalyptic number.

117273138 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.

117273138 is a wasteful number, since it uses less digits than its factorization.

117273138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19545528.

The product of its digits is 7056, while the sum is 33.

The square root of 117273138 is about 10829.2722747191. The cubic root of 117273138 is about 489.4776301865.

The spelling of 117273138 in words is "one hundred seventeen million, two hundred seventy-three thousand, one hundred thirty-eight".