197231 has 4 divisors (see below), whose sum is σ = 198912. Its totient is φ = 195552.

The previous prime is 197221. The next prime is 197233. The reversal of 197231 is 132791.

197231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197231 - 2¹⁴ = 180847 is a prime.

It is a super-2 number, since 2×197231² = 77800134722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197197 and 197206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197233) 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, 650 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (49728).

2¹⁹⁷²³¹ is an apocalyptic number.

197231 is a deficient number, since it is larger than the sum of its proper divisors (1681).

197231 is a wasteful number, since it uses less digits than its factorization.

197231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680.

The product of its digits is 378, while the sum is 23.

The square root of 197231 is about 444.1069690964. The cubic root of 197231 is about 58.2092127297.

The spelling of 197231 in words is "one hundred ninety-seven thousand, two hundred thirty-one".