3133231 has 4 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 3128272.

The previous prime is 3133213. The next prime is 3133237. The reversal of 3133231 is 1323313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323313 = 907 ⋅1459.

It is a cyclic number.

It is not a de Polignac number, because 3133231 - 2¹⁵ = 3100463 is a prime.

It is a super-2 number, since 2×3133231² = 19634272998722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133237) 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, 1366 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (784548).

Almost surely, 2^3133231 is an apocalyptic number.

3133231 is a deficient number, since it is larger than the sum of its proper divisors (4961).

3133231 is an equidigital number, since it uses as much as digits as its factorization.

3133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960.

The product of its digits is 162, while the sum is 16.

The square root of 3133231 is about 1770.0935003553. The cubic root of 3133231 is about 146.3291348582.

Adding to 3133231 its reverse (1323313), we get a palindrome (4456544).

It can be divided in two parts, 3133 and 231, that added together give a square (3364 = 58²).

The spelling of 3133231 in words is "three million, one hundred thirty-three thousand, two hundred thirty-one".