231198 has 32 divisors (see below), whose sum is σ = 525312. Its totient is φ = 67200.

The previous prime is 231197. The next prime is 231223. The reversal of 231198 is 891132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1990 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (16416).

2²³¹¹⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262656).

231198 is an abundant number, since it is smaller than the sum of its proper divisors (294114).

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

231198 is a wasteful number, since it uses less digits than its factorization.

231198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

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

The square root of 231198 is about 480.8305314765. The cubic root of 231198 is about 61.3754502257.

It can be divided in two parts, 23 and 1198, that added together give a palindrome (1221).

The spelling of 231198 in words is "two hundred thirty-one thousand, one hundred ninety-eight".