45205187 has 2 divisors, whose sum is σ = 45205188. Its totient is φ = 45205186.

The previous prime is 45205141. The next prime is 45205207. The reversal of 45205187 is 78150254.

45205187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45205187 - 2¹⁸ = 44943043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45202187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22602593 + 22602594.

It is an arithmetic number, because the mean of its divisors is an integer number (22602594).

Almost surely, 2^45205187 is an apocalyptic number.

45205187 is a deficient number, since it is larger than the sum of its proper divisors (1).

45205187 is an equidigital number, since it uses as much as digits as its factorization.

45205187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 45205187 is about 6723.4802743817. The cubic root of 45205187 is about 356.2291243744.

The spelling of 45205187 in words is "forty-five million, two hundred five thousand, one hundred eighty-seven".