491163 has 8 divisors (see below), whose sum is σ = 661776. Its totient is φ = 324000.

The previous prime is 491159. The next prime is 491167. The reversal of 491163 is 361194.

It is an interprime number because it is at equal distance from previous prime (491159) and next prime (491167).

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

It is not a de Polignac number, because 491163 - 2² = 491159 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491163.

It is not an unprimeable number, because it can be changed into a prime (491167) 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, 508 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (82722).

2⁴⁹¹¹⁶³ is an apocalyptic number.

491163 is a deficient number, since it is larger than the sum of its proper divisors (170613).

491163 is a wasteful number, since it uses less digits than its factorization.

491163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725.

The product of its digits is 648, while the sum is 24.

The square root of 491163 is about 700.8302219511. The cubic root of 491163 is about 78.8996750297.

The spelling of 491163 in words is "four hundred ninety-one thousand, one hundred sixty-three".