45434321 has 2 divisors, whose sum is σ = 45434322. Its totient is φ = 45434320.

The previous prime is 45434309. The next prime is 45434327. The reversal of 45434321 is 12343454.

45434321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

45434321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 19536400 = 5089^2 + 4420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45434321 is a prime.

It is a Sophie Germain prime.

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

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45434327) 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, 22717160 + 22717161.

It is an arithmetic number, because the mean of its divisors is an integer number (22717161).

Almost surely, 2^45434321 is an apocalyptic number.

It is an amenable number.

45434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45434321 is an equidigital number, since it uses as much as digits as its factorization.

45434321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 26.

The square root of 45434321 is about 6740.4985720642. The cubic root of 45434321 is about 356.8299896409.

Adding to 45434321 its reverse (12343454), we get a palindrome (57777775).

The spelling of 45434321 in words is "forty-five million, four hundred thirty-four thousand, three hundred twenty-one".