3213231 has 16 divisors (see below), whose sum is σ = 4990464. Its totient is φ = 1800864.

The previous prime is 3213163. The next prime is 3213233. The reversal of 3213231 is 1323123.

3213231 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3213231 - 2¹³ = 3205039 is a prime.

It is a super-2 number, since 2×3213231² = 20649706918722, which contains 22 as substring.

3213231 is strictly pandigital in base 8.

3213231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (311904).

Almost surely, 2^3213231 is an apocalyptic number.

3213231 is a deficient number, since it is larger than the sum of its proper divisors (1777233).

3213231 is a wasteful number, since it uses less digits than its factorization.

3213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950.

The product of its digits is 108, while the sum is 15.

The square root of 3213231 is about 1792.5487441071. The cubic root of 3213231 is about 147.5640782583.

Subtracting from 3213231 its product of digits (108), we obtain a palindrome (3213123).

Adding to 3213231 its reverse (1323123), we get a palindrome (4536354).

The spelling of 3213231 in words is "three million, two hundred thirteen thousand, two hundred thirty-one".