426143 has 4 divisors (see below), whose sum is σ = 429528. Its totient is φ = 422760.

The previous prime is 426131. The next prime is 426161. The reversal of 426143 is 341624.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426143 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 (426103) 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, 1496 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (107382).

2⁴²⁶¹⁴³ is an apocalyptic number.

426143 is a deficient number, since it is larger than the sum of its proper divisors (3385).

426143 is a wasteful number, since it uses less digits than its factorization.

426143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384.

The product of its digits is 576, while the sum is 20.

The square root of 426143 is about 652.7962928816. The cubic root of 426143 is about 75.2520703764.

Adding to 426143 its reverse (341624), we get a palindrome (767767).

The spelling of 426143 in words is "four hundred twenty-six thousand, one hundred forty-three".