1426143 has 4 divisors (see below), whose sum is σ = 1901528. Its totient is φ = 950760.

The previous prime is 1426141. The next prime is 1426151. The reversal of 1426143 is 3416241.

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

It is not a de Polignac number, because 1426143 - 2¹ = 1426141 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426141) 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, 237688 + ... + 237693.

It is an arithmetic number, because the mean of its divisors is an integer number (475382).

2^1426143 is an apocalyptic number.

1426143 is a deficient number, since it is larger than the sum of its proper divisors (475385).

1426143 is an equidigital number, since it uses as much as digits as its factorization.

1426143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475384.

The product of its digits is 576, while the sum is 21.

The square root of 1426143 is about 1194.2122926850. The cubic root of 1426143 is about 112.5609348903.

The spelling of 1426143 in words is "one million, four hundred twenty-six thousand, one hundred forty-three".