45271273 has 4 divisors (see below), whose sum is σ = 45310788. Its totient is φ = 45231760.

The previous prime is 45271267. The next prime is 45271277. The reversal of 45271273 is 37217254.

45271273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37217254 = 2 ⋅18608627.

It can be written as a sum of positive squares in 2 ways, for example, as 36820624 + 8450649 = 6068^2 + 2907^2 .

It is a cyclic number.

It is not a de Polignac number, because 45271273 - 2⁵ = 45271241 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45271277) 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 3 ways as a sum of consecutive naturals, for example, 17986 + ... + 20347.

It is an arithmetic number, because the mean of its divisors is an integer number (11327697).

Almost surely, 2^45271273 is an apocalyptic number.

It is an amenable number.

45271273 is a deficient number, since it is larger than the sum of its proper divisors (39515).

45271273 is a wasteful number, since it uses less digits than its factorization.

45271273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39514.

The product of its digits is 11760, while the sum is 31.

The square root of 45271273 is about 6728.3930473777. The cubic root of 45271273 is about 356.4026317142.

The spelling of 45271273 in words is "forty-five million, two hundred seventy-one thousand, two hundred seventy-three".