1424143 has 4 divisors (see below), whose sum is σ = 1627600. Its totient is φ = 1220688.

The previous prime is 1424123. The next prime is 1424149. The reversal of 1424143 is 3414241.

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

It is a de Polignac number, because none of the positive numbers 2^k-1424143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1424143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101718 + ... + 101731.

It is an arithmetic number, because the mean of its divisors is an integer number (406900).

2^1424143 is an apocalyptic number.

1424143 is a deficient number, since it is larger than the sum of its proper divisors (203457).

1424143 is an equidigital number, since it uses as much as digits as its factorization.

1424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203456.

The product of its digits is 384, while the sum is 19.

The square root of 1424143 is about 1193.3746268461. The cubic root of 1424143 is about 112.5082923929.

Adding to 1424143 its reverse (3414241), we get a palindrome (4838384).

The spelling of 1424143 in words is "one million, four hundred twenty-four thousand, one hundred forty-three".