231326198 has 8 divisors (see below), whose sum is σ = 354372192. Its totient is φ = 113202136.

The previous prime is 231326171. The next prime is 231326209. The reversal of 231326198 is 891623132.

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

It is a super-2 number, since 2×231326198² = 107023619762270408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230365 + ... + 1230552.

It is an arithmetic number, because the mean of its divisors is an integer number (44296524).

Almost surely, 2^231326198 is an apocalyptic number.

231326198 is a deficient number, since it is larger than the sum of its proper divisors (123045994).

231326198 is a wasteful number, since it uses less digits than its factorization.

231326198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460966.

The product of its digits is 15552, while the sum is 35.

The square root of 231326198 is about 15209.4114942032. The cubic root of 231326198 is about 613.8679224444.

The spelling of 231326198 in words is "two hundred thirty-one million, three hundred twenty-six thousand, one hundred ninety-eight".