45143847 has 18 divisors (see below), whose sum is σ = 75854688. Its totient is φ = 25796232.

The previous prime is 45143837. The next prime is 45143873. The reversal of 45143847 is 74834154.

It is not a de Polignac number, because 45143847 - 2¹⁹ = 44619559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45143837) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 50743 + ... + 51624.

Almost surely, 2^45143847 is an apocalyptic number.

45143847 is a deficient number, since it is larger than the sum of its proper divisors (30710841).

45143847 is a wasteful number, since it uses less digits than its factorization.

45143847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102387 (or 102377 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 45143847 is about 6718.9171002476. The cubic root of 45143847 is about 356.0679261667.

The spelling of 45143847 in words is "forty-five million, one hundred forty-three thousand, eight hundred forty-seven".