4243503 has 8 divisors (see below), whose sum is σ = 6172416. Its totient is φ = 2571800.

The previous prime is 4243487. The next prime is 4243511. The reversal of 4243503 is 3053424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4243503 - 2⁴ = 4243487 is a prime.

It is a super-2 number, since 2×4243503² = 36014635422018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4243503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243543) 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, 64263 + ... + 64328.

It is an arithmetic number, because the mean of its divisors is an integer number (771552).

Almost surely, 2^4243503 is an apocalyptic number.

4243503 is a deficient number, since it is larger than the sum of its proper divisors (1928913).

4243503 is a wasteful number, since it uses less digits than its factorization.

4243503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128605.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 4243503 is about 2059.9764561761. The cubic root of 4243503 is about 161.8980077413.

Adding to 4243503 its reverse (3053424), we get a palindrome (7296927).

The spelling of 4243503 in words is "four million, two hundred forty-three thousand, five hundred three".