4122143 has 4 divisors (see below), whose sum is σ = 4364640. Its totient is φ = 3879648.

The previous prime is 4122121. The next prime is 4122169. The reversal of 4122143 is 3412214.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4122143 is a prime.

It is a super-3 number, since 3×4122143³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 242479 = 4122143 / (4 + 1 + 2 + 2 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122103) 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, 121223 + ... + 121256.

It is an arithmetic number, because the mean of its divisors is an integer number (1091160).

Almost surely, 2^4122143 is an apocalyptic number.

4122143 is a deficient number, since it is larger than the sum of its proper divisors (242497).

4122143 is a wasteful number, since it uses less digits than its factorization.

4122143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242496.

The product of its digits is 192, while the sum is 17.

The square root of 4122143 is about 2030.3061345521. The cubic root of 4122143 is about 160.3396819864.

Adding to 4122143 its reverse (3412214), we get a palindrome (7534357).

The spelling of 4122143 in words is "four million, one hundred twenty-two thousand, one hundred forty-three".