195331 has 4 divisors (see below), whose sum is σ = 201664. Its totient is φ = 189000.

The previous prime is 195329. The next prime is 195341. The reversal of 195331 is 133591.

195331 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133591 = 103 ⋅1297.

It is a cyclic number.

It is not a de Polignac number, because 195331 - 2¹ = 195329 is a prime.

It is a super-2 number, since 2×195331² = 76308399122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195311) 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, 3120 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (50416).

2¹⁹⁵³³¹ is an apocalyptic number.

195331 is a deficient number, since it is larger than the sum of its proper divisors (6333).

195331 is an equidigital number, since it uses as much as digits as its factorization.

195331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332.

The product of its digits is 405, while the sum is 22.

The square root of 195331 is about 441.9626681067. The cubic root of 195331 is about 58.0216922427.

The spelling of 195331 in words is "one hundred ninety-five thousand, three hundred thirty-one".