123424543 has 8 divisors (see below), whose sum is σ = 134730576. Its totient is φ = 112132800.

The previous prime is 123424541. The next prime is 123424579. The reversal of 123424543 is 345424321.

It is a happy number.

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 123424543 - 2¹ = 123424541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123424541) 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, 23355 + ... + 28147.

It is an arithmetic number, because the mean of its divisors is an integer number (16841322).

Almost surely, 2^123424543 is an apocalyptic number.

123424543 is a deficient number, since it is larger than the sum of its proper divisors (11306033).

123424543 is a wasteful number, since it uses less digits than its factorization.

123424543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145.

The product of its digits is 11520, while the sum is 28.

The square root of 123424543 is about 11109.6598957844. The cubic root of 123424543 is about 497.8905032297.

Adding to 123424543 its reverse (345424321), we get a palindrome (468848864).

The spelling of 123424543 in words is "one hundred twenty-three million, four hundred twenty-four thousand, five hundred forty-three".