4491143 has 8 divisors (see below), whose sum is σ = 4672080. Its totient is φ = 4312000.

The previous prime is 4491133. The next prime is 4491161. The reversal of 4491143 is 3411944.

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

It is a cyclic number.

It is not a de Polignac number, because 4491143 - 2⁶ = 4491079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491133) 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, 6971 + ... + 7587.

It is an arithmetic number, because the mean of its divisors is an integer number (584010).

Almost surely, 2^4491143 is an apocalyptic number.

4491143 is a deficient number, since it is larger than the sum of its proper divisors (180937).

4491143 is a wasteful number, since it uses less digits than its factorization.

4491143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897.

The product of its digits is 1728, while the sum is 26.

The square root of 4491143 is about 2119.2317004047. The cubic root of 4491143 is about 164.9879758608.

The spelling of 4491143 in words is "four million, four hundred ninety-one thousand, one hundred forty-three".