123017472 has 108 divisors (see below), whose sum is σ = 358722000. Its totient is φ = 40541184.

The previous prime is 123017467. The next prime is 123017513. The reversal of 123017472 is 274710321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246279 + ... + 246777.

It is an arithmetic number, because the mean of its divisors is an integer number (3321500).

Almost surely, 2^123017472 is an apocalyptic number.

123017472 is a gapful number since it is divisible by the number (12) 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 123017472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179361000).

123017472 is an abundant number, since it is smaller than the sum of its proper divisors (235704528).

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

123017472 is a wasteful number, since it uses less digits than its factorization.

123017472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 123017472 is about 11091.3241770313. The cubic root of 123017472 is about 497.3425300637.

Adding to 123017472 its reverse (274710321), we get a palindrome (397727793).

The spelling of 123017472 in words is "one hundred twenty-three million, seventeen thousand, four hundred seventy-two".