117185842 has 4 divisors (see below), whose sum is σ = 175778766. Its totient is φ = 58592920.

The previous prime is 117185837. The next prime is 117185843. The reversal of 117185842 is 248581711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 73770921 + 43414921 = 8589^2 + 6589^2 .

It is not an unprimeable number, because it can be changed into a prime (117185843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29296459 + ... + 29296462.

Almost surely, 2^117185842 is an apocalyptic number.

117185842 is a deficient number, since it is larger than the sum of its proper divisors (58592924).

117185842 is an equidigital number, since it uses as much as digits as its factorization.

117185842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58592923.

The product of its digits is 17920, while the sum is 37.

The square root of 117185842 is about 10825.2409672949. The cubic root of 117185842 is about 489.3561472773.

The spelling of 117185842 in words is "one hundred seventeen million, one hundred eighty-five thousand, eight hundred forty-two".