4142123 has 4 divisors (see below), whose sum is σ = 4148328. Its totient is φ = 4135920.

The previous prime is 4142119. The next prime is 4142129. The reversal of 4142123 is 3212414.

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 4142123 - 2² = 4142119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4142129) 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, 1961 + ... + 3482.

It is an arithmetic number, because the mean of its divisors is an integer number (1037082).

Almost surely, 2^4142123 is an apocalyptic number.

4142123 is a deficient number, since it is larger than the sum of its proper divisors (6205).

4142123 is an equidigital number, since it uses as much as digits as its factorization.

4142123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204.

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

The square root of 4142123 is about 2035.2206268609. The cubic root of 4142123 is about 160.5983196916.

Adding to 4142123 its reverse (3212414), we get a palindrome (7354537).

The spelling of 4142123 in words is "four million, one hundred forty-two thousand, one hundred twenty-three".