45043321 has 2 divisors, whose sum is σ = 45043322. Its totient is φ = 45043320.

The previous prime is 45043301. The next prime is 45043333. The reversal of 45043321 is 12334054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33408400 + 11634921 = 5780^2 + 3411^2 .

It is a cyclic number.

It is not a de Polignac number, because 45043321 - 2⁵ = 45043289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45043292 and 45043301.

It is not a weakly prime, because it can be changed into another prime (45043301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22521660 + 22521661.

It is an arithmetic number, because the mean of its divisors is an integer number (22521661).

Almost surely, 2^45043321 is an apocalyptic number.

It is an amenable number.

45043321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45043321 is an equidigital number, since it uses as much as digits as its factorization.

45043321 is an evil number, because the sum of its binary digits is even.

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

The square root of 45043321 is about 6711.4321124481. The cubic root of 45043321 is about 355.8034332304.

Adding to 45043321 its reverse (12334054), we get a palindrome (57377375).

The spelling of 45043321 in words is "forty-five million, forty-three thousand, three hundred twenty-one".