1421424233 has 4 divisors (see below), whose sum is σ = 1421506128. Its totient is φ = 1421342340.

The previous prime is 1421424209. The next prime is 1421424253. The reversal of 1421424233 is 3324241241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1421424233 - 2¹² = 1421420137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421424253) 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, 3491 + ... + 53432.

It is an arithmetic number, because the mean of its divisors is an integer number (355376532).

Almost surely, 2^1421424233 is an apocalyptic number.

It is an amenable number.

1421424233 is a deficient number, since it is larger than the sum of its proper divisors (81895).

1421424233 is an equidigital number, since it uses as much as digits as its factorization.

1421424233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81894.

The product of its digits is 4608, while the sum is 26.

The square root of 1421424233 is about 37701.7802364822. The cubic root of 1421424233 is about 1124.3665195391.

Adding to 1421424233 its reverse (3324241241), we get a palindrome (4745665474).

The spelling of 1421424233 in words is "one billion, four hundred twenty-one million, four hundred twenty-four thousand, two hundred thirty-three".