123912234 has 16 divisors (see below), whose sum is σ = 275360640. Its totient is φ = 41304060.

The previous prime is 123912233. The next prime is 123912259. The reversal of 123912234 is 432219321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123912198 and 123912207.

It is not an unprimeable number, because it can be changed into a prime (123912233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147282 + ... + 1147389.

It is an arithmetic number, because the mean of its divisors is an integer number (17210040).

Almost surely, 2^123912234 is an apocalyptic number.

123912234 is an abundant number, since it is smaller than the sum of its proper divisors (151448406).

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

123912234 is a wasteful number, since it uses less digits than its factorization.

123912234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294682 (or 2294676 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 123912234 is about 11131.5872183620. The cubic root of 123912234 is about 498.5454178182.

The spelling of 123912234 in words is "one hundred twenty-three million, nine hundred twelve thousand, two hundred thirty-four".