123543426 has 8 divisors (see below), whose sum is σ = 247086864. Its totient is φ = 41181140.

The previous prime is 123543421. The next prime is 123543467. The reversal of 123543426 is 624345321.

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

123543426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 123543393 and 123543402.

It is not an unprimeable number, because it can be changed into a prime (123543421) 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, 10295280 + ... + 10295291.

It is an arithmetic number, because the mean of its divisors is an integer number (30885858).

Almost surely, 2^123543426 is an apocalyptic number.

123543426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123543426 is a wasteful number, since it uses less digits than its factorization.

123543426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20590576.

The product of its digits is 17280, while the sum is 30.

The square root of 123543426 is about 11115.0090418317. The cubic root of 123543426 is about 498.0503086222.

Adding to 123543426 its reverse (624345321), we get a palindrome (747888747).

The spelling of 123543426 in words is "one hundred twenty-three million, five hundred forty-three thousand, four hundred twenty-six".