45071185 has 4 divisors (see below), whose sum is σ = 54085428. Its totient is φ = 36056944.

The previous prime is 45071183. The next prime is 45071207. The reversal of 45071185 is 58117054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58117054 = 2 ⋅29058527.

It can be written as a sum of positive squares in 2 ways, for example, as 20151121 + 24920064 = 4489^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 45071185 - 2¹ = 45071183 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45071183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507114 + ... + 4507123.

It is an arithmetic number, because the mean of its divisors is an integer number (13521357).

Almost surely, 2^45071185 is an apocalyptic number.

It is an amenable number.

45071185 is a deficient number, since it is larger than the sum of its proper divisors (9014243).

45071185 is an equidigital number, since it uses as much as digits as its factorization.

45071185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9014242.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 45071185 is about 6713.5076524869. The cubic root of 45071185 is about 355.8767853061.

The spelling of 45071185 in words is "forty-five million, seventy-one thousand, one hundred eighty-five".