123801472 has 64 divisors (see below), whose sum is σ = 256354560. Its totient is φ = 59512320.

The previous prime is 123801467. The next prime is 123801499. The reversal of 123801472 is 274108321.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 123801472.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 456697 + ... + 456967.

It is an arithmetic number, because the mean of its divisors is an integer number (4005540).

Almost surely, 2^123801472 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 123801472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128177280).

123801472 is an abundant number, since it is smaller than the sum of its proper divisors (132553088).

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

123801472 is an equidigital number, since it uses as much as digits as its factorization.

123801472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 123801472 is about 11126.6109844822. The cubic root of 123801472 is about 498.3968278386.

Adding to 123801472 its reverse (274108321), we get a palindrome (397909793).

The spelling of 123801472 in words is "one hundred twenty-three million, eight hundred one thousand, four hundred seventy-two".