395231 has 2 divisors, whose sum is σ = 395232. Its totient is φ = 395230.

The previous prime is 395201. The next prime is 395243. The reversal of 395231 is 132593.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 395231 - 2¹⁸ = 133087 is a prime.

It is a super-2 number, since 2×395231² = 312415086722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395197 and 395206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197615 + 197616.

It is an arithmetic number, because the mean of its divisors is an integer number (197616).

2³⁹⁵²³¹ is an apocalyptic number.

395231 is a deficient number, since it is larger than the sum of its proper divisors (1).

395231 is an equidigital number, since it uses as much as digits as its factorization.

395231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 23.

The square root of 395231 is about 628.6740013711. The cubic root of 395231 is about 73.3866393875.

It can be divided in two parts, 395 and 231, that added together give a palindrome (626).

The spelling of 395231 in words is "three hundred ninety-five thousand, two hundred thirty-one".