123823506 has 32 divisors (see below), whose sum is σ = 250453440. Its totient is φ = 40810176.

The previous prime is 123823501. The next prime is 123823519. The reversal of 123823506 is 605328321.

It is not an unprimeable number, because it can be changed into a prime (123823501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311700 + ... + 312096.

It is an arithmetic number, because the mean of its divisors is an integer number (7826670).

Almost surely, 2^123823506 is an apocalyptic number.

123823506 is an abundant number, since it is smaller than the sum of its proper divisors (126629934).

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

123823506 is a wasteful number, since it uses less digits than its factorization.

123823506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 123823506 is about 11127.6010891836. The cubic root of 123823506 is about 498.4263940575.

The spelling of 123823506 in words is "one hundred twenty-three million, eight hundred twenty-three thousand, five hundred six".