4123243 has 4 divisors (see below), whose sum is σ = 4234720. Its totient is φ = 4011768.

The previous prime is 4123211. The next prime is 4123253. The reversal of 4123243 is 3423214.

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 4123243 - 2⁵ = 4123211 is a prime.

It is a super-2 number, since 2×4123243² = 34002265674098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4123243.

It is not an unprimeable number, because it can be changed into a prime (4123253) 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, 55683 + ... + 55756.

It is an arithmetic number, because the mean of its divisors is an integer number (1058680).

Almost surely, 2^4123243 is an apocalyptic number.

4123243 is a deficient number, since it is larger than the sum of its proper divisors (111477).

4123243 is a wasteful number, since it uses less digits than its factorization.

4123243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111476.

The product of its digits is 576, while the sum is 19.

The square root of 4123243 is about 2030.5770115905. The cubic root of 4123243 is about 160.3539430123.

Adding to 4123243 its reverse (3423214), we get a palindrome (7546457).

It can be divided in two parts, 412 and 3243, that added together give a triangular number (3655 = T₈₅).

The spelling of 4123243 in words is "four million, one hundred twenty-three thousand, two hundred forty-three".