1450221 has 4 divisors (see below), whose sum is σ = 1933632. Its totient is φ = 966812.

The previous prime is 1450201. The next prime is 1450231. The reversal of 1450221 is 1220541.

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.

It is a cyclic number.

It is not a de Polignac number, because 1450221 - 2⁶ = 1450157 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1450221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450201) 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, 241701 + ... + 241706.

It is an arithmetic number, because the mean of its divisors is an integer number (483408).

2^1450221 is an apocalyptic number.

It is an amenable number.

1450221 is a deficient number, since it is larger than the sum of its proper divisors (483411).

1450221 is an equidigital number, since it uses as much as digits as its factorization.

1450221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483410.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1450221 is about 1204.2512196382. The cubic root of 1450221 is about 113.1908696286.

Adding to 1450221 its reverse (1220541), we get a palindrome (2670762).

The spelling of 1450221 in words is "one million, four hundred fifty thousand, two hundred twenty-one".