123000198 has 8 divisors (see below), whose sum is σ = 246000408. Its totient is φ = 41000064.

The previous prime is 123000197. The next prime is 123000203. The reversal of 123000198 is 891000321.

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

123000198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123000193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10250011 + ... + 10250022.

It is an arithmetic number, because the mean of its divisors is an integer number (30750051).

Almost surely, 2^123000198 is an apocalyptic number.

123000198 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.

123000198 is a wasteful number, since it uses less digits than its factorization.

123000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500038.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 123000198 is about 11090.5454329352. The cubic root of 123000198 is about 497.3192501808.

The spelling of 123000198 in words is "one hundred twenty-three million, one hundred ninety-eight", and thus it is an aban number.