45034021 has 2 divisors, whose sum is σ = 45034022. Its totient is φ = 45034020.

The previous prime is 45033997. The next prime is 45034027. The reversal of 45034021 is 12043054.

45034021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 4901796 = 6335^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 45034021 - 2⁹ = 45033509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45034021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45034027) 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, 22517010 + 22517011.

It is an arithmetic number, because the mean of its divisors is an integer number (22517011).

Almost surely, 2^45034021 is an apocalyptic number.

It is an amenable number.

45034021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45034021 is an equidigital number, since it uses as much as digits as its factorization.

45034021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 45034021 is about 6710.7392290269. The cubic root of 45034021 is about 355.7789442155.

Adding to 45034021 its reverse (12043054), we get a palindrome (57077075).

The spelling of 45034021 in words is "forty-five million, thirty-four thousand, twenty-one".