45030109 has 2 divisors, whose sum is σ = 45030110. Its totient is φ = 45030108.

The previous prime is 45030103. The next prime is 45030131. The reversal of 45030109 is 90103054.

It is an a-pointer prime, because the next prime (45030131) can be obtained adding 45030109 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 15382084 = 5445^2 + 3922^2 .

It is a cyclic number.

It is not a de Polignac number, because 45030109 - 2⁵ = 45030077 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 45030109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45030103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22515054 + 22515055.

It is an arithmetic number, because the mean of its divisors is an integer number (22515055).

Almost surely, 2^45030109 is an apocalyptic number.

It is an amenable number.

45030109 is a deficient number, since it is larger than the sum of its proper divisors (1).

45030109 is an equidigital number, since it uses as much as digits as its factorization.

45030109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 45030109 is about 6710.4477495917. The cubic root of 45030109 is about 355.7686420224.

The spelling of 45030109 in words is "forty-five million, thirty thousand, one hundred nine".