45170173 has 4 divisors (see below), whose sum is σ = 47827260. Its totient is φ = 42513088.

The previous prime is 45170171. The next prime is 45170189. The reversal of 45170173 is 37107154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42341049 + 2829124 = 6507^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 45170173 - 2¹ = 45170171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45170171) 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 3 ways as a sum of consecutive naturals, for example, 1328518 + ... + 1328551.

It is an arithmetic number, because the mean of its divisors is an integer number (11956815).

Almost surely, 2^45170173 is an apocalyptic number.

It is an amenable number.

45170173 is a deficient number, since it is larger than the sum of its proper divisors (2657087).

45170173 is a wasteful number, since it uses less digits than its factorization.

45170173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657086.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 45170173 is about 6720.8759101772. The cubic root of 45170173 is about 356.1371273483.

The spelling of 45170173 in words is "forty-five million, one hundred seventy thousand, one hundred seventy-three".