45549173 has 2 divisors, whose sum is σ = 45549174. Its totient is φ = 45549172.

The previous prime is 45549167. The next prime is 45549187. The reversal of 45549173 is 37194554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32058244 + 13490929 = 5662^2 + 3673^2 .

It is a cyclic number.

It is not a de Polignac number, because 45549173 - 2⁸ = 45548917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45549113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22774586 + 22774587.

It is an arithmetic number, because the mean of its divisors is an integer number (22774587).

Almost surely, 2^45549173 is an apocalyptic number.

It is an amenable number.

45549173 is a deficient number, since it is larger than the sum of its proper divisors (1).

45549173 is an equidigital number, since it uses as much as digits as its factorization.

45549173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 45549173 is about 6749.0127426165. The cubic root of 45549173 is about 357.1304097681.

The spelling of 45549173 in words is "forty-five million, five hundred forty-nine thousand, one hundred seventy-three".