1445022321 has 16 divisors (see below), whose sum is σ = 2042103168. Its totient is φ = 905760000.

The previous prime is 1445022307. The next prime is 1445022323. The reversal of 1445022321 is 1232205441.

It is not a de Polignac number, because 1445022321 - 2⁷ = 1445022193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445022291 and 1445022300.

It is not an unprimeable number, because it can be changed into a prime (1445022323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38196 + ... + 65946.

It is an arithmetic number, because the mean of its divisors is an integer number (127631448).

Almost surely, 2^1445022321 is an apocalyptic number.

It is an amenable number.

1445022321 is a deficient number, since it is larger than the sum of its proper divisors (597080847).

1445022321 is a wasteful number, since it uses less digits than its factorization.

1445022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28792.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1445022321 is about 38013.4492120881. The cubic root of 1445022321 is about 1130.5545405156.

Adding to 1445022321 its reverse (1232205441), we get a palindrome (2677227762).

The spelling of 1445022321 in words is "one billion, four hundred forty-five million, twenty-two thousand, three hundred twenty-one".