123264543 has 4 divisors (see below), whose sum is σ = 164352728. Its totient is φ = 82176360.

The previous prime is 123264487. The next prime is 123264553. The reversal of 123264543 is 345462321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123264543 - 2⁸ = 123264287 is a prime.

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 123264543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123264553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20544088 + ... + 20544093.

It is an arithmetic number, because the mean of its divisors is an integer number (41088182).

Almost surely, 2^123264543 is an apocalyptic number.

123264543 is a deficient number, since it is larger than the sum of its proper divisors (41088185).

123264543 is an equidigital number, since it uses as much as digits as its factorization.

123264543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41088184.

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

The square root of 123264543 is about 11102.4566200459. The cubic root of 123264543 is about 497.6752653022.

The spelling of 123264543 in words is "one hundred twenty-three million, two hundred sixty-four thousand, five hundred forty-three".