123204648 has 128 divisors (see below), whose sum is σ = 364849920. Its totient is φ = 33945600.

The previous prime is 123204623. The next prime is 123204659. The reversal of 123204648 is 846402321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899236 + ... + 899372.

It is an arithmetic number, because the mean of its divisors is an integer number (2850390).

Almost surely, 2^123204648 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 123204648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182424960).

123204648 is an abundant number, since it is smaller than the sum of its proper divisors (241645272).

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

123204648 is a wasteful number, since it uses less digits than its factorization.

123204648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 123204648 is about 11099.7589163008. The cubic root of 123204648 is about 497.5946444181.

Adding to 123204648 its reverse (846402321), we get a palindrome (969606969).

The spelling of 123204648 in words is "one hundred twenty-three million, two hundred four thousand, six hundred forty-eight".