194681516 has 12 divisors (see below), whose sum is σ = 340958688. Its totient is φ = 97264752.

The previous prime is 194681497. The next prime is 194681527. The reversal of 194681516 is 615186491.

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, 13031 + ... + 23646.

It is an arithmetic number, because the mean of its divisors is an integer number (28413224).

Almost surely, 2^194681516 is an apocalyptic number.

It is an amenable number.

194681516 is a deficient number, since it is larger than the sum of its proper divisors (146277172).

194681516 is a wasteful number, since it uses less digits than its factorization.

194681516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38008 (or 38006 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 194681516 is about 13952.8318272672. The cubic root of 194681516 is about 579.5731262514.

The spelling of 194681516 in words is "one hundred ninety-four million, six hundred eighty-one thousand, five hundred sixteen".