491121194 has 16 divisors (see below), whose sum is σ = 785635200. Its totient is φ = 229450944.

The previous prime is 491121179. The next prime is 491121217.

491121194 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 491121194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47234 + ... + 56685.

It is an arithmetic number, because the mean of its divisors is an integer number (49102200).

Almost surely, 2^491121194 is an apocalyptic number.

491121194 is a deficient number, since it is larger than the sum of its proper divisors (294514006).

491121194 is a wasteful number, since it uses less digits than its factorization.

491121194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104077.

The product of its digits is 2592, while the sum is 32.

The square root of 491121194 is about 22161.2543417560. The cubic root of 491121194 is about 788.9743641550.

The spelling of 491121194 in words is "four hundred ninety-one million, one hundred twenty-one thousand, one hundred ninety-four".