495143 has 4 divisors (see below), whose sum is σ = 540168. Its totient is φ = 450120.

The previous prime is 495139. The next prime is 495149. The reversal of 495143 is 341594.

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

It is not a de Polignac number, because 495143 - 2² = 495139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22496 + ... + 22517.

It is an arithmetic number, because the mean of its divisors is an integer number (135042).

2⁴⁹⁵¹⁴³ is an apocalyptic number.

495143 is a deficient number, since it is larger than the sum of its proper divisors (45025).

495143 is a wasteful number, since it uses less digits than its factorization.

495143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45024.

The product of its digits is 2160, while the sum is 26.

The square root of 495143 is about 703.6639823097. The cubic root of 495143 is about 79.1122156811.

It can be divided in two parts, 4951 and 43, that added together give a palindrome (4994).

The spelling of 495143 in words is "four hundred ninety-five thousand, one hundred forty-three".