198967123 has 8 divisors (see below), whose sum is σ = 202275216. Its totient is φ = 195686400.

The previous prime is 198967081. The next prime is 198967151. The reversal of 198967123 is 321769891.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198967123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198967423) 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, 8083 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (25284402).

Almost surely, 2^198967123 is an apocalyptic number.

198967123 is a deficient number, since it is larger than the sum of its proper divisors (3308093).

198967123 is a wasteful number, since it uses less digits than its factorization.

198967123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13685.

The product of its digits is 163296, while the sum is 46.

The square root of 198967123 is about 14105.5706371632. The cubic root of 198967123 is about 583.7950927388.

The spelling of 198967123 in words is "one hundred ninety-eight million, nine hundred sixty-seven thousand, one hundred twenty-three".