45004540309 has 2 divisors, whose sum is σ = 45004540310. Its totient is φ = 45004540308.

The previous prime is 45004540303. The next prime is 45004540337. The reversal of 45004540309 is 90304540054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40419896209 + 4584644100 = 201047^2 + 67710^2 .

It is a cyclic number.

It is not a de Polignac number, because 45004540309 - 2⁵ = 45004540277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45004540303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22502270154 + 22502270155.

It is an arithmetic number, because the mean of its divisors is an integer number (22502270155).

Almost surely, 2^45004540309 is an apocalyptic number.

It is an amenable number.

45004540309 is a deficient number, since it is larger than the sum of its proper divisors (1).

45004540309 is an equidigital number, since it uses as much as digits as its factorization.

45004540309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 45004540309 in words is "forty-five billion, four million, five hundred forty thousand, three hundred nine".