4545143 has 4 divisors (see below), whose sum is σ = 4650888. Its totient is φ = 4439400.

The previous prime is 4545139. The next prime is 4545157. The reversal of 4545143 is 3415454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4545143 - 2² = 4545139 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 (4545113) 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, 52808 + ... + 52893.

It is an arithmetic number, because the mean of its divisors is an integer number (1162722).

Almost surely, 2^4545143 is an apocalyptic number.

4545143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4545143 is a deficient number, since it is larger than the sum of its proper divisors (105745).

4545143 is a wasteful number, since it uses less digits than its factorization.

4545143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105744.

The product of its digits is 4800, while the sum is 26.

The square root of 4545143 is about 2131.9340984186. The cubic root of 4545143 is about 165.6465965905.

The spelling of 4545143 in words is "four million, five hundred forty-five thousand, one hundred forty-three".