491134273 has 16 divisors (see below), whose sum is σ = 570839040. Its totient is φ = 413876736.

The previous prime is 491134253. The next prime is 491134277. The reversal of 491134273 is 372431194.

It is a de Polignac number, because none of the positive numbers 2^k-491134273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491134277) 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, 98013 + ... + 102901.

It is an arithmetic number, because the mean of its divisors is an integer number (35677440).

Almost surely, 2^491134273 is an apocalyptic number.

It is an amenable number.

491134273 is a deficient number, since it is larger than the sum of its proper divisors (79704767).

491134273 is a wasteful number, since it uses less digits than its factorization.

491134273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136.

The product of its digits is 18144, while the sum is 34.

The square root of 491134273 is about 22161.5494268790. The cubic root of 491134273 is about 788.9813677923.

The spelling of 491134273 in words is "four hundred ninety-one million, one hundred thirty-four thousand, two hundred seventy-three".