1403043 has 4 divisors (see below), whose sum is σ = 1870728. Its totient is φ = 935360.

The previous prime is 1403021. The next prime is 1403057. The reversal of 1403043 is 3403041.

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

It is a cyclic number.

It is not a de Polignac number, because 1403043 - 2¹⁰ = 1402019 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1403443) 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, 233838 + ... + 233843.

It is an arithmetic number, because the mean of its divisors is an integer number (467682).

2^1403043 is an apocalyptic number.

1403043 is a deficient number, since it is larger than the sum of its proper divisors (467685).

1403043 is an equidigital number, since it uses as much as digits as its factorization.

1403043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467684.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1403043 is about 1184.5011608268. The cubic root of 1403043 is about 111.9498872325.

Adding to 1403043 its reverse (3403041), we get a palindrome (4806084).

The spelling of 1403043 in words is "one million, four hundred three thousand, forty-three".