355231 has 4 divisors (see below), whose sum is σ = 358600. Its totient is φ = 351864.

The previous prime is 355211. The next prime is 355261. The reversal of 355231 is 132553.

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 355231 - 2¹⁵ = 322463 is a prime.

It is a super-2 number, since 2×355231² = 252378126722, 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 = 355199 and 355208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355211) 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 3 ways as a sum of consecutive naturals, for example, 1521 + ... + 1738.

It is an arithmetic number, because the mean of its divisors is an integer number (89650).

2³⁵⁵²³¹ is an apocalyptic number.

355231 is a deficient number, since it is larger than the sum of its proper divisors (3369).

355231 is a wasteful number, since it uses less digits than its factorization.

355231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368.

The product of its digits is 450, while the sum is 19.

The square root of 355231 is about 596.0125837598. The cubic root of 355231 is about 70.8223423162.

Adding to 355231 its reverse (132553), we get a palindrome (487784).

The spelling of 355231 in words is "three hundred fifty-five thousand, two hundred thirty-one".