123843144 has 64 divisors (see below), whose sum is σ = 321753600. Its totient is φ = 39688704.

The previous prime is 123843143. The next prime is 123843169. The reversal of 123843144 is 441348321.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (123843143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78249 + ... + 79815.

It is an arithmetic number, because the mean of its divisors is an integer number (5027400).

Almost surely, 2^123843144 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 123843144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160876800).

123843144 is an abundant number, since it is smaller than the sum of its proper divisors (197910456).

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

123843144 is a wasteful number, since it uses less digits than its factorization.

123843144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1698 counting only the distinct ones).

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

The square root of 123843144 is about 11128.4834546312. The cubic root of 123843144 is about 498.4527422592.

The spelling of 123843144 in words is "one hundred twenty-three million, eight hundred forty-three thousand, one hundred forty-four".