45171189 has 60 divisors (see below), whose sum is σ = 82764000. Its totient is φ = 24412752.

The previous prime is 45171127. The next prime is 45171223. The reversal of 45171189 is 98117154.

45171189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45171189 - 2¹⁵ = 45138421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45171689) by changing a digit.

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

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 75112 + ... + 75710.

It is an arithmetic number, because the mean of its divisors is an integer number (1379400).

Almost surely, 2^45171189 is an apocalyptic number.

45171189 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

45171189 is a deficient number, since it is larger than the sum of its proper divisors (37592811).

45171189 is a wasteful number, since it uses less digits than its factorization.

45171189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 628 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 45171189 is about 6720.9514951382. The cubic root of 45171189 is about 356.1397974924.

The spelling of 45171189 in words is "forty-five million, one hundred seventy-one thousand, one hundred eighty-nine".