122643143 has 8 divisors (see below), whose sum is σ = 140563488. Its totient is φ = 104822784.

The previous prime is 122643133. The next prime is 122643167. The reversal of 122643143 is 341346221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122643143 - 2¹⁰ = 122642119 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 (122643133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22346 + ... + 27287.

It is an arithmetic number, because the mean of its divisors is an integer number (17570436).

Almost surely, 2^122643143 is an apocalyptic number.

122643143 is a deficient number, since it is larger than the sum of its proper divisors (17920345).

122643143 is an equidigital number, since it uses as much as digits as its factorization.

122643143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49993.

The product of its digits is 3456, while the sum is 26.

The square root of 122643143 is about 11074.4364642179. The cubic root of 122643143 is about 496.8375641693.

Adding to 122643143 its reverse (341346221), we get a palindrome (463989364).

The spelling of 122643143 in words is "one hundred twenty-two million, six hundred forty-three thousand, one hundred forty-three".