491180213 has 8 divisors (see below), whose sum is σ = 507386880. Its totient is φ = 474996240.

The previous prime is 491180189. The next prime is 491180227. The reversal of 491180213 is 312081194.

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

It is a cyclic number.

It is not a de Polignac number, because 491180213 - 2⁸ = 491179957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491180293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45908 + ... + 55586.

It is an arithmetic number, because the mean of its divisors is an integer number (63423360).

Almost surely, 2^491180213 is an apocalyptic number.

It is an amenable number.

491180213 is a deficient number, since it is larger than the sum of its proper divisors (16206667).

491180213 is a wasteful number, since it uses less digits than its factorization.

491180213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 491180213 is about 22162.5858825183. The cubic root of 491180213 is about 789.0059670896.

The spelling of 491180213 in words is "four hundred ninety-one million, one hundred eighty thousand, two hundred thirteen".