195231 has 8 divisors (see below), whose sum is σ = 264960. Its totient is φ = 127832.

The previous prime is 195229. The next prime is 195241. The reversal of 195231 is 132591.

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

It is a cyclic number.

It is not a de Polignac number, because 195231 - 2¹ = 195229 is a prime.

It is a super-2 number, since 2×195231² = 76230286722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 195198 and 195207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375 + ... + 728.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2¹⁹⁵²³¹ is an apocalyptic number.

195231 is a deficient number, since it is larger than the sum of its proper divisors (69729).

195231 is a wasteful number, since it uses less digits than its factorization.

195231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its digits is 270, while the sum is 21.

The square root of 195231 is about 441.8495218963. The cubic root of 195231 is about 58.0117891216.

The spelling of 195231 in words is "one hundred ninety-five thousand, two hundred thirty-one".