491517132 has 24 divisors (see below), whose sum is σ = 1147238400. Its totient is φ = 163786896.

The previous prime is 491517113. The next prime is 491517161. The reversal of 491517132 is 231715194.

It is a junction number, because it is equal to n+sod(n) for n = 491517093 and 491517102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59469 + ... + 67227.

It is an arithmetic number, because the mean of its divisors is an integer number (47801600).

Almost surely, 2^491517132 is an apocalyptic number.

It is an amenable number.

491517132 is an abundant number, since it is smaller than the sum of its proper divisors (655721268).

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

491517132 is a wasteful number, since it uses less digits than its factorization.

491517132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13045 (or 13043 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 491517132 is about 22170.1856555149. The cubic root of 491517132 is about 789.1863288226.

The spelling of 491517132 in words is "four hundred ninety-one million, five hundred seventeen thousand, one hundred thirty-two".