491589119 has 24 divisors (see below), whose sum is σ = 611586288. Its totient is φ = 392582400.

The previous prime is 491589101. The next prime is 491589167. The reversal of 491589119 is 911985194.

It is not a de Polignac number, because 491589119 - 2¹² = 491585023 is a prime.

It is a super-2 number, since 2×491589119² = 483319723838392322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491589169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81212 + ... + 87054.

It is an arithmetic number, because the mean of its divisors is an integer number (25482762).

Almost surely, 2^491589119 is an apocalyptic number.

491589119 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

491589119 is a deficient number, since it is larger than the sum of its proper divisors (119997169).

491589119 is a wasteful number, since it uses less digits than its factorization.

491589119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5975 (or 5968 counting only the distinct ones).

The product of its digits is 116640, while the sum is 47.

The square root of 491589119 is about 22171.8091052580. The cubic root of 491589119 is about 789.2248546978.

The spelling of 491589119 in words is "four hundred ninety-one million, five hundred eighty-nine thousand, one hundred nineteen".