1433221 has 4 divisors (see below), whose sum is σ = 1439872. Its totient is φ = 1426572.

The previous prime is 1433213. The next prime is 1433239. The reversal of 1433221 is 1223341.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 1223341 = 7 ⋅174763.

It is a cyclic number.

It is not a de Polignac number, because 1433221 - 2³ = 1433213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1433195 and 1433204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1433251) 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, 2991 + ... + 3436.

It is an arithmetic number, because the mean of its divisors is an integer number (359968).

2^1433221 is an apocalyptic number.

It is an amenable number.

1433221 is a deficient number, since it is larger than the sum of its proper divisors (6651).

1433221 is an equidigital number, since it uses as much as digits as its factorization.

1433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650.

The product of its digits is 144, while the sum is 16.

The square root of 1433221 is about 1197.1720845392. The cubic root of 1433221 is about 112.7468423558.

Adding to 1433221 its reverse (1223341), we get a palindrome (2656562).

It can be divided in two parts, 143 and 3221, that added together give a square (3364 = 58²).

The spelling of 1433221 in words is "one million, four hundred thirty-three thousand, two hundred twenty-one".