4238123 has 4 divisors (see below), whose sum is σ = 4336728. Its totient is φ = 4139520.

The previous prime is 4238119. The next prime is 4238149. The reversal of 4238123 is 3218324.

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 4238123 - 2² = 4238119 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 3⁴ + 8⁵ + 1 + 2¹³ + 3⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4238153) 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, 49238 + ... + 49323.

It is an arithmetic number, because the mean of its divisors is an integer number (1084182).

Almost surely, 2^4238123 is an apocalyptic number.

4238123 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4238123 is a deficient number, since it is larger than the sum of its proper divisors (98605).

4238123 is an equidigital number, since it uses as much as digits as its factorization.

4238123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98604.

The product of its digits is 1152, while the sum is 23.

The square root of 4238123 is about 2058.6702018536. The cubic root of 4238123 is about 161.8295596033.

The spelling of 4238123 in words is "four million, two hundred thirty-eight thousand, one hundred twenty-three".