117802138 has 8 divisors (see below), whose sum is σ = 177107040. Its totient is φ = 58766460.

The previous prime is 117802133. The next prime is 117802141. The reversal of 117802138 is 831208711.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (117802133) 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 3 ways as a sum of consecutive naturals, for example, 66208 + ... + 67963.

It is an arithmetic number, because the mean of its divisors is an integer number (22138380).

Almost surely, 2^117802138 is an apocalyptic number.

117802138 is a deficient number, since it is larger than the sum of its proper divisors (59304902).

117802138 is a wasteful number, since it uses less digits than its factorization.

117802138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134612.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 117802138 is about 10853.6693334559. The cubic root of 117802138 is about 490.2125109037.

The spelling of 117802138 in words is "one hundred seventeen million, eight hundred two thousand, one hundred thirty-eight".