117816242 has 8 divisors (see below), whose sum is σ = 178710300. Its totient is φ = 58246144.

The previous prime is 117816227. The next prime is 117816313. The reversal of 117816242 is 242618711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116402521 + 1413721 = 10789^2 + 1189^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 117816199 and 117816208.

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, 330767 + ... + 331122.

Almost surely, 2^117816242 is an apocalyptic number.

117816242 is a deficient number, since it is larger than the sum of its proper divisors (60894058).

117816242 is an equidigital number, since it uses as much as digits as its factorization.

117816242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661980.

The product of its digits is 5376, while the sum is 32.

The square root of 117816242 is about 10854.3190481946. The cubic root of 117816242 is about 490.2320738801.

The spelling of 117816242 in words is "one hundred seventeen million, eight hundred sixteen thousand, two hundred forty-two".