117917146 has 8 divisors (see below), whose sum is σ = 177898644. Its totient is φ = 58617600.

The previous prime is 117917143. The next prime is 117917171. The reversal of 117917146 is 641719711.

It can be written as a sum of positive squares in 2 ways, for example, as 93799225 + 24117921 = 9685^2 + 4911^2 .

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 (117917141) 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, 170055 + ... + 170746.

Almost surely, 2^117917146 is an apocalyptic number.

117917146 is a deficient number, since it is larger than the sum of its proper divisors (59981498).

117917146 is a wasteful number, since it uses less digits than its factorization.

117917146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340976.

The product of its digits is 10584, while the sum is 37.

The square root of 117917146 is about 10858.9661570520. The cubic root of 117917146 is about 490.3719874189.

The spelling of 117917146 in words is "one hundred seventeen million, nine hundred seventeen thousand, one hundred forty-six".