123125808 has 120 divisors (see below), whose sum is σ = 359042992. Its totient is φ = 36140544.

The previous prime is 123125803. The next prime is 123125809. The reversal of 123125808 is 808521321.

It is not an unprimeable number, because it can be changed into a prime (123125801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329910 + ... + 330282.

Almost surely, 2^123125808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123125808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179521496).

123125808 is an abundant number, since it is smaller than the sum of its proper divisors (235917184).

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

123125808 is a wasteful number, since it uses less digits than its factorization.

123125808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 123125808 is about 11096.2069194838. The cubic root of 123125808 is about 497.4884830208.

The spelling of 123125808 in words is "one hundred twenty-three million, one hundred twenty-five thousand, eight hundred eight".