123195942 has 24 divisors (see below), whose sum is σ = 269377680. Its totient is φ = 40687920.

The previous prime is 123195901. The next prime is 123195949. The reversal of 123195942 is 249591321.

It is a junction number, because it is equal to n+sod(n) for n = 123195897 and 123195906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123195949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29434 + ... + 33357.

It is an arithmetic number, because the mean of its divisors is an integer number (11224070).

Almost surely, 2^123195942 is an apocalyptic number.

123195942 is an abundant number, since it is smaller than the sum of its proper divisors (146181738).

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

123195942 is a wasteful number, since it uses less digits than its factorization.

123195942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62908 (or 62905 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 123195942 is about 11099.3667386928. The cubic root of 123195942 is about 497.5829236454.

The spelling of 123195942 in words is "one hundred twenty-three million, one hundred ninety-five thousand, nine hundred forty-two".