45143 has 4 divisors (see below), whose sum is σ = 51600. Its totient is φ = 38688.

The previous prime is 45139. The next prime is 45161. The reversal of 45143 is 34154.

45143 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: 34154 = 2 ⋅17077.

It is a cyclic number.

It is not a de Polignac number, because 45143 - 2² = 45139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218 + ... + 3231.

It is an arithmetic number, because the mean of its divisors is an integer number (12900).

2⁴⁵¹⁴³ is an apocalyptic number.

45143 is a deficient number, since it is larger than the sum of its proper divisors (6457).

45143 is an equidigital number, since it uses as much as digits as its factorization.

45143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456.

The product of its digits is 240, while the sum is 17.

The square root of 45143 is about 212.4688212421. The cubic root of 45143 is about 35.6065699275.

Adding to 45143 its reverse (34154), we get a palindrome (79297).

It can be divided in two parts, 451 and 43, that added together give a palindrome (494).

The spelling of 45143 in words is "forty-five thousand, one hundred forty-three".