1421043 has 16 divisors (see below), whose sum is σ = 2069760. Its totient is φ = 861984.

The previous prime is 1421041. The next prime is 1421083. The reversal of 1421043 is 3401241.

It is not a de Polignac number, because 1421043 - 2¹ = 1421041 is a prime.

1421043 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1421041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3018 + ... + 3456.

It is an arithmetic number, because the mean of its divisors is an integer number (129360).

2^1421043 is an apocalyptic number.

1421043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1421043 is a deficient number, since it is larger than the sum of its proper divisors (648717).

1421043 is a wasteful number, since it uses less digits than its factorization.

1421043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1421043 is about 1192.0750815280. The cubic root of 1421043 is about 112.4265990333.

Adding to 1421043 its reverse (3401241), we get a palindrome (4822284).

The spelling of 1421043 in words is "one million, four hundred twenty-one thousand, forty-three".