45188089 has 2 divisors, whose sum is σ = 45188090. Its totient is φ = 45188088.

The previous prime is 45187991. The next prime is 45188093. The reversal of 45188089 is 98088154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23843689 + 21344400 = 4883^2 + 4620^2 .

It is a cyclic number.

It is not a de Polignac number, because 45188089 - 2⁹ = 45187577 is a prime.

It is not a weakly prime, because it can be changed into another prime (45188189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22594044 + 22594045.

It is an arithmetic number, because the mean of its divisors is an integer number (22594045).

Almost surely, 2^45188089 is an apocalyptic number.

It is an amenable number.

45188089 is a deficient number, since it is larger than the sum of its proper divisors (1).

45188089 is an equidigital number, since it uses as much as digits as its factorization.

45188089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 45188089 is about 6722.2086400230. The cubic root of 45188089 is about 356.1842064196.

The spelling of 45188089 in words is "forty-five million, one hundred eighty-eight thousand, eighty-nine".