491164182 has 32 divisors (see below), whose sum is σ = 1093138560. Its totient is φ = 163472040.

The previous prime is 491164181. The next prime is 491164183. The reversal of 491164182 is 281461194.

491164182 is a `hidden beast` number, since 4 + 9 + 1 + 1 + 641 + 8 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (491164181) and next prime (491164183).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491164181) 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 15 ways as a sum of consecutive naturals, for example, 30733 + ... + 43895.

It is an arithmetic number, because the mean of its divisors is an integer number (34160580).

Almost surely, 2^491164182 is an apocalyptic number.

491164182 is an abundant number, since it is smaller than the sum of its proper divisors (601974378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491164182 is a wasteful number, since it uses less digits than its factorization.

491164182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13865 (or 13859 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 491164182 is about 22162.2242114820. The cubic root of 491164182 is about 788.9973832121.

The spelling of 491164182 in words is "four hundred ninety-one million, one hundred sixty-four thousand, one hundred eighty-two".