123229842 has 8 divisors (see below), whose sum is σ = 246459696. Its totient is φ = 41076612.

The previous prime is 123229811. The next prime is 123229849. The reversal of 123229842 is 248922321.

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

123229842 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (123229849) 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 3 ways as a sum of consecutive naturals, for example, 10269148 + ... + 10269159.

It is an arithmetic number, because the mean of its divisors is an integer number (30807462).

Almost surely, 2^123229842 is an apocalyptic number.

123229842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123229842 is a wasteful number, since it uses less digits than its factorization.

123229842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20538312.

The product of its digits is 13824, while the sum is 33.

The square root of 123229842 is about 11100.8937478025. The cubic root of 123229842 is about 497.6285596565.

The spelling of 123229842 in words is "one hundred twenty-three million, two hundred twenty-nine thousand, eight hundred forty-two".