4138123 has 8 divisors (see below), whose sum is σ = 4780080. Its totient is φ = 3540480.

The previous prime is 4138111. The next prime is 4138129. The reversal of 4138123 is 3218314.

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 4138123 - 2²¹ = 2040971 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4138094 and 4138103.

It is not an unprimeable number, because it can be changed into a prime (4138129) 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, 10878 + ... + 11251.

It is an arithmetic number, because the mean of its divisors is an integer number (597510).

Almost surely, 2^4138123 is an apocalyptic number.

4138123 is a deficient number, since it is larger than the sum of its proper divisors (641957).

4138123 is a wasteful number, since it uses less digits than its factorization.

4138123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22157.

The product of its digits is 576, while the sum is 22.

The square root of 4138123 is about 2034.2376950593. The cubic root of 4138123 is about 160.5466070655.

The spelling of 4138123 in words is "four million, one hundred thirty-eight thousand, one hundred twenty-three".