45133609 has 2 divisors, whose sum is σ = 45133610. Its totient is φ = 45133608.

The previous prime is 45133603. The next prime is 45133631. The reversal of 45133609 is 90633154.

45133609 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., 38477209 + 6656400 = 6203^2 + 2580^2 .

It is a cyclic number.

It is not a de Polignac number, because 45133609 - 2⁵ = 45133577 is a prime.

It is a super-2 number, since 2×45133609² = 4074085322729762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45133603) 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, 22566804 + 22566805.

It is an arithmetic number, because the mean of its divisors is an integer number (22566805).

Almost surely, 2^45133609 is an apocalyptic number.

It is an amenable number.

45133609 is a deficient number, since it is larger than the sum of its proper divisors (1).

45133609 is an equidigital number, since it uses as much as digits as its factorization.

45133609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 45133609 is about 6718.1551783209. The cubic root of 45133609 is about 356.0410070383.

It can be divided in two parts, 4 and 5133609, that multiplied together give a triangular number (20534436 = T₆₄₀₈).

The spelling of 45133609 in words is "forty-five million, one hundred thirty-three thousand, six hundred nine".