485643143 has 4 divisors (see below), whose sum is σ = 493604568. Its totient is φ = 477681720.

The previous prime is 485643133. The next prime is 485643149. The reversal of 485643143 is 341346584.

It is a happy number.

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 485643143 - 2⁶ = 485643079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 485643097 and 485643106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485643149) 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, 3980621 + ... + 3980742.

It is an arithmetic number, because the mean of its divisors is an integer number (123401142).

Almost surely, 2^485643143 is an apocalyptic number.

485643143 is a deficient number, since it is larger than the sum of its proper divisors (7961425).

485643143 is an equidigital number, since it uses as much as digits as its factorization.

485643143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961424.

The product of its digits is 138240, while the sum is 38.

The square root of 485643143 is about 22037.3125176370. The cubic root of 485643143 is about 786.0299370055.

The spelling of 485643143 in words is "four hundred eighty-five million, six hundred forty-three thousand, one hundred forty-three".