45430321 has 2 divisors, whose sum is σ = 45430322. Its totient is φ = 45430320.

The previous prime is 45430291. The next prime is 45430361. The reversal of 45430321 is 12303454.

45430321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29550096 + 15880225 = 5436^2 + 3985^2 .

It is a cyclic number.

It is not a de Polignac number, because 45430321 - 2⁵ = 45430289 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 45430292 and 45430301.

It is not a weakly prime, because it can be changed into another prime (45430361) 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 as a sum of consecutive naturals, namely, 22715160 + 22715161.

It is an arithmetic number, because the mean of its divisors is an integer number (22715161).

Almost surely, 2^45430321 is an apocalyptic number.

It is an amenable number.

45430321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45430321 is an equidigital number, since it uses as much as digits as its factorization.

45430321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45430321 is about 6740.2018515769. The cubic root of 45430321 is about 356.8195176613.

Adding to 45430321 its reverse (12303454), we get a palindrome (57733775).

The spelling of 45430321 in words is "forty-five million, four hundred thirty thousand, three hundred twenty-one".