45305189 has 4 divisors (see below), whose sum is σ = 45346656. Its totient is φ = 45263724.

The previous prime is 45305179. The next prime is 45305201. The reversal of 45305189 is 98150354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45305189 - 2⁸ = 45304933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305129) 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, 19049 + ... + 21294.

It is an arithmetic number, because the mean of its divisors is an integer number (11336664).

Almost surely, 2^45305189 is an apocalyptic number.

It is an amenable number.

45305189 is a deficient number, since it is larger than the sum of its proper divisors (41467).

45305189 is a wasteful number, since it uses less digits than its factorization.

45305189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41466.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 45305189 is about 6730.9129395647. The cubic root of 45305189 is about 356.4916118666.

The spelling of 45305189 in words is "forty-five million, three hundred five thousand, one hundred eighty-nine".