123841256 has 64 divisors (see below), whose sum is σ = 291962880. Its totient is φ = 47839680.

The previous prime is 123841219. The next prime is 123841261. The reversal of 123841256 is 652148321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77441 + ... + 79023.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 2^123841256 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 123841256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145981440).

123841256 is an abundant number, since it is smaller than the sum of its proper divisors (168121624).

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

123841256 is a wasteful number, since it uses less digits than its factorization.

123841256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734 (or 1730 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 123841256 is about 11128.3986269364. The cubic root of 123841256 is about 498.4502092605.

Adding to 123841256 its reverse (652148321), we get a palindrome (775989577).

The spelling of 123841256 in words is "one hundred twenty-three million, eight hundred forty-one thousand, two hundred fifty-six".