117780146 has 8 divisors (see below), whose sum is σ = 192731184. Its totient is φ = 53536420.

The previous prime is 117780137. The next prime is 117780149. The reversal of 117780146 is 641087711.

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 (117780149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2676800 + ... + 2676843.

It is an arithmetic number, because the mean of its divisors is an integer number (24091398).

Almost surely, 2^117780146 is an apocalyptic number.

117780146 is a deficient number, since it is larger than the sum of its proper divisors (74951038).

117780146 is a wasteful number, since it uses less digits than its factorization.

117780146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353656.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 117780146 is about 10852.6561725690. The cubic root of 117780146 is about 490.1820037480.

The spelling of 117780146 in words is "one hundred seventeen million, seven hundred eighty thousand, one hundred forty-six".