45203009 has 2 divisors, whose sum is σ = 45203010. Its totient is φ = 45203008.

The previous prime is 45202999. The next prime is 45203021. The reversal of 45203009 is 90030254.

45203009 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., 37761025 + 7441984 = 6145^2 + 2728^2 .

It is a cyclic number.

It is not a de Polignac number, because 45203009 - 2⁸ = 45202753 is a prime.

It is not a weakly prime, because it can be changed into another prime (45203309) 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, 22601504 + 22601505.

It is an arithmetic number, because the mean of its divisors is an integer number (22601505).

Almost surely, 2^45203009 is an apocalyptic number.

It is an amenable number.

45203009 is a deficient number, since it is larger than the sum of its proper divisors (1).

45203009 is an equidigital number, since it uses as much as digits as its factorization.

45203009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 45203009 is about 6723.3183027431. The cubic root of 45203009 is about 356.2234032057.

The spelling of 45203009 in words is "forty-five million, two hundred three thousand, nine".