123046543 has 4 divisors (see below), whose sum is σ = 123082960. Its totient is φ = 123010128.

The previous prime is 123046523. The next prime is 123046589. The reversal of 123046543 is 345640321.

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 123046543 - 2²¹ = 120949391 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 (123046523) 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, 12555 + ... + 20092.

It is an arithmetic number, because the mean of its divisors is an integer number (30770740).

Almost surely, 2^123046543 is an apocalyptic number.

123046543 is a deficient number, since it is larger than the sum of its proper divisors (36417).

123046543 is an equidigital number, since it uses as much as digits as its factorization.

123046543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36416.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 123046543 is about 11092.6346284370. The cubic root of 123046543 is about 497.3817036480.

Adding to 123046543 its reverse (345640321), we get a palindrome (468686864).

The spelling of 123046543 in words is "one hundred twenty-three million, forty-six thousand, five hundred forty-three".