45009001 has 2 divisors, whose sum is σ = 45009002. Its totient is φ = 45009000.

The previous prime is 45008989. The next prime is 45009061. The reversal of 45009001 is 10090054.

45009001 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., 43626025 + 1382976 = 6605^2 + 1176^2 .

It is a cyclic number.

It is not a de Polignac number, because 45009001 - 2⁵ = 45008969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45009001.

It is not a weakly prime, because it can be changed into another prime (45009061) 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, 22504500 + 22504501.

It is an arithmetic number, because the mean of its divisors is an integer number (22504501).

Almost surely, 2^45009001 is an apocalyptic number.

It is an amenable number.

45009001 is a deficient number, since it is larger than the sum of its proper divisors (1).

45009001 is an equidigital number, since it uses as much as digits as its factorization.

45009001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 45009001 is about 6708.8747938831. The cubic root of 45009001 is about 355.7130441248.

Adding to 45009001 its reverse (10090054), we get a palindrome (55099055).

It can be divided in two parts, 4500 and 9001, that multiplied together give a triangular number (40504500 = T₉₀₀₀).

The spelling of 45009001 in words is "forty-five million, nine thousand, one".