123719712 has 96 divisors (see below), whose sum is σ = 339603264. Its totient is φ = 39398400.

The previous prime is 123719707. The next prime is 123719741. The reversal of 123719712 is 217917321.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216387 + ... + 216957.

It is an arithmetic number, because the mean of its divisors is an integer number (3537534).

Almost surely, 2^123719712 is an apocalyptic number.

123719712 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 123719712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169801632).

123719712 is an abundant number, since it is smaller than the sum of its proper divisors (215883552).

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

123719712 is a wasteful number, since it uses less digits than its factorization.

123719712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 674 counting only the distinct ones).

The product of its digits is 5292, while the sum is 33.

The square root of 123719712 is about 11122.9363029732. The cubic root of 123719712 is about 498.2870878987.

The spelling of 123719712 in words is "one hundred twenty-three million, seven hundred nineteen thousand, seven hundred twelve".