123281841 has 8 divisors (see below), whose sum is σ = 174045024. Its totient is φ = 77353280.

The previous prime is 123281831. The next prime is 123281843. The reversal of 123281841 is 148182321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123281841 - 2⁶ = 123281777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123281799 and 123281808.

It is not an unprimeable number, because it can be changed into a prime (123281843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1208595 + ... + 1208696.

It is an arithmetic number, because the mean of its divisors is an integer number (21755628).

Almost surely, 2^123281841 is an apocalyptic number.

It is an amenable number.

123281841 is a deficient number, since it is larger than the sum of its proper divisors (50763183).

123281841 is a wasteful number, since it uses less digits than its factorization.

123281841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417311.

The product of its digits is 3072, while the sum is 30.

The square root of 123281841 is about 11103.2356094969. The cubic root of 123281841 is about 497.6985441891.

The spelling of 123281841 in words is "one hundred twenty-three million, two hundred eighty-one thousand, eight hundred forty-one".