1423543 has 8 divisors (see below), whose sum is σ = 1566720. Its totient is φ = 1282680.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423543 is 3453241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1423543 - 2⁵ = 1423511 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 (1423547) 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 7 ways as a sum of consecutive naturals, for example, 888 + ... + 1906.

It is an arithmetic number, because the mean of its divisors is an integer number (195840).

2^1423543 is an apocalyptic number.

1423543 is a deficient number, since it is larger than the sum of its proper divisors (143177).

1423543 is a wasteful number, since it uses less digits than its factorization.

1423543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its digits is 1440, while the sum is 22.

The square root of 1423543 is about 1193.1232124135. The cubic root of 1423543 is about 112.4924900337.

Adding to 1423543 its reverse (3453241), we get a palindrome (4876784).

The spelling of 1423543 in words is "one million, four hundred twenty-three thousand, five hundred forty-three".