123243946 has 16 divisors (see below), whose sum is σ = 211717440. Its totient is φ = 52708320.

The previous prime is 123243943. The next prime is 123243947. The reversal of 123243946 is 649342321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123243943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091 + ... + 15838.

It is an arithmetic number, because the mean of its divisors is an integer number (13232340).

Almost surely, 2^123243946 is an apocalyptic number.

123243946 is a deficient number, since it is larger than the sum of its proper divisors (88473494).

123243946 is a wasteful number, since it uses less digits than its factorization.

123243946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18429.

The product of its digits is 31104, while the sum is 34.

The square root of 123243946 is about 11101.5289937918. The cubic root of 123243946 is about 497.6475439256.

The spelling of 123243946 in words is "one hundred twenty-three million, two hundred forty-three thousand, nine hundred forty-six".