494143 has 4 divisors (see below), whose sum is σ = 532168. Its totient is φ = 456120.

The previous prime is 494141. The next prime is 494147. The reversal of 494143 is 341494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 494143 - 2¹ = 494141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18993 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (133042).

2⁴⁹⁴¹⁴³ is an apocalyptic number.

494143 is a deficient number, since it is larger than the sum of its proper divisors (38025).

494143 is a wasteful number, since it uses less digits than its factorization.

494143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38024.

The product of its digits is 1728, while the sum is 25.

The square root of 494143 is about 702.9530567541. The cubic root of 494143 is about 79.0589209532.

The spelling of 494143 in words is "four hundred ninety-four thousand, one hundred forty-three".