123996528 has 160 divisors (see below), whose sum is σ = 377118720. Its totient is φ = 38949120.

The previous prime is 123996503. The next prime is 123996529. The reversal of 123996528 is 825699321.

123996528 is a `hidden beast` number, since 1 + 2 + 39 + 96 + 528 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123996529) 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 31 ways as a sum of consecutive naturals, for example, 629326 + ... + 629522.

It is an arithmetic number, because the mean of its divisors is an integer number (2356992).

Almost surely, 2^123996528 is an apocalyptic number.

123996528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123996528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188559360).

123996528 is an abundant number, since it is smaller than the sum of its proper divisors (253122192).

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

123996528 is a wasteful number, since it uses less digits than its factorization.

123996528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 280 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 123996528 is about 11135.3728271666. The cubic root of 123996528 is about 498.6584409915.

The spelling of 123996528 in words is "one hundred twenty-three million, nine hundred ninety-six thousand, five hundred twenty-eight".