45182189 has 16 divisors (see below), whose sum is σ = 51190272. Its totient is φ = 39566208.

The previous prime is 45182153. The next prime is 45182191. The reversal of 45182189 is 98128154.

It is a cyclic number.

It is not a de Polignac number, because 45182189 - 2¹² = 45178093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45182119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40412 + ... + 41514.

It is an arithmetic number, because the mean of its divisors is an integer number (3199392).

Almost surely, 2^45182189 is an apocalyptic number.

It is an amenable number.

45182189 is a deficient number, since it is larger than the sum of its proper divisors (6008083).

45182189 is a wasteful number, since it uses less digits than its factorization.

45182189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its digits is 23040, while the sum is 38.

The square root of 45182189 is about 6721.7697818357. The cubic root of 45182189 is about 356.1687039695.

The spelling of 45182189 in words is "forty-five million, one hundred eighty-two thousand, one hundred eighty-nine".