45047271 has 16 divisors (see below), whose sum is σ = 65975040. Its totient is φ = 27213120.

The previous prime is 45047257. The next prime is 45047279. The reversal of 45047271 is 17274054.

It is not a de Polignac number, because 45047271 - 2¹⁰ = 45046247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45047279) 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, 15870 + ... + 18491.

It is an arithmetic number, because the mean of its divisors is an integer number (4123440).

Almost surely, 2^45047271 is an apocalyptic number.

45047271 is a deficient number, since it is larger than the sum of its proper divisors (20927769).

45047271 is a wasteful number, since it uses less digits than its factorization.

45047271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34406.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 45047271 is about 6711.7263800009. The cubic root of 45047271 is about 355.8138334589.

The spelling of 45047271 in words is "forty-five million, forty-seven thousand, two hundred seventy-one".