45727143 has 24 divisors (see below), whose sum is σ = 77374080. Its totient is φ = 23753520.

The previous prime is 45727141. The next prime is 45727163. The reversal of 45727143 is 34172754.

It is not a de Polignac number, because 45727143 - 2¹ = 45727141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45727141) 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 23 ways as a sum of consecutive naturals, for example, 12523 + ... + 15756.

It is an arithmetic number, because the mean of its divisors is an integer number (3223920).

Almost surely, 2^45727143 is an apocalyptic number.

45727143 is a deficient number, since it is larger than the sum of its proper divisors (31646937).

45727143 is a wasteful number, since it uses less digits than its factorization.

45727143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28307 (or 28300 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 45727143 is about 6762.1847800840. The cubic root of 45727143 is about 357.5949326514.

Adding to 45727143 its reverse (34172754), we get a palindrome (79899897).

The spelling of 45727143 in words is "forty-five million, seven hundred twenty-seven thousand, one hundred forty-three".