1453224221 has 16 divisors (see below), whose sum is σ = 1500199680. Its totient is φ = 1407144960.

The previous prime is 1453224217. The next prime is 1453224229. The reversal of 1453224221 is 1224223541.

It is a cyclic number.

It is not a de Polignac number, because 1453224221 - 2² = 1453224217 is a prime.

It is a super-2 number, since 2×1453224221² = 4223721273002113682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453224229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1550465 + ... + 1551401.

It is an arithmetic number, because the mean of its divisors is an integer number (93762480).

Almost surely, 2^1453224221 is an apocalyptic number.

It is an amenable number.

1453224221 is a deficient number, since it is larger than the sum of its proper divisors (46975459).

1453224221 is an equidigital number, since it uses as much as digits as its factorization.

1453224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364.

The product of its digits is 3840, while the sum is 26.

The square root of 1453224221 is about 38121.1781166322. The cubic root of 1453224221 is about 1132.6895032827.

Adding to 1453224221 its reverse (1224223541), we get a palindrome (2677447762).

The spelling of 1453224221 in words is "one billion, four hundred fifty-three million, two hundred twenty-four thousand, two hundred twenty-one".