356231 has 4 divisors (see below), whose sum is σ = 375000. Its totient is φ = 337464.

The previous prime is 356219. The next prime is 356243. The reversal of 356231 is 132653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132653 = 109 ⋅1217.

It is an interprime number because it is at equal distance from previous prime (356219) and next prime (356243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356231 is a prime.

It is a super-2 number, since 2×356231² = 253801050722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 356231.

It is not an unprimeable number, because it can be changed into a prime (356261) 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, 9356 + ... + 9393.

It is an arithmetic number, because the mean of its divisors is an integer number (93750).

2³⁵⁶²³¹ is an apocalyptic number.

356231 is a deficient number, since it is larger than the sum of its proper divisors (18769).

356231 is a wasteful number, since it uses less digits than its factorization.

356231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18768.

The product of its digits is 540, while the sum is 20.

The square root of 356231 is about 596.8509026549. The cubic root of 356231 is about 70.8887366619. Note that the first 3 decimals are identical.

Adding to 356231 its reverse (132653), we get a palindrome (488884).

The spelling of 356231 in words is "three hundred fifty-six thousand, two hundred thirty-one".