45219189 has 8 divisors (see below), whose sum is σ = 60437152. Its totient is φ = 30073680.

The previous prime is 45219157. The next prime is 45219191. The reversal of 45219189 is 98191254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45219189 - 2⁵ = 45219157 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 (45219589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16639 + ... + 19164.

It is an arithmetic number, because the mean of its divisors is an integer number (7554644).

Almost surely, 2^45219189 is an apocalyptic number.

It is an amenable number.

45219189 is a deficient number, since it is larger than the sum of its proper divisors (15217963).

45219189 is a wasteful number, since it uses less digits than its factorization.

45219189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36227.

The product of its digits is 25920, while the sum is 39.

The square root of 45219189 is about 6724.5214699635. The cubic root of 45219189 is about 356.2659004291.

The spelling of 45219189 in words is "forty-five million, two hundred nineteen thousand, one hundred eighty-nine".