3131233 has 4 divisors (see below), whose sum is σ = 3578560. Its totient is φ = 2683908.

The previous prime is 3131231. The next prime is 3131237. The reversal of 3131233 is 3321313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3321313 = 1021 ⋅3253.

It is a cyclic number.

It is not a de Polignac number, because 3131233 - 2¹ = 3131231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131231) 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, 223653 + ... + 223666.

It is an arithmetic number, because the mean of its divisors is an integer number (894640).

Almost surely, 2^3131233 is an apocalyptic number.

It is an amenable number.

3131233 is a deficient number, since it is larger than the sum of its proper divisors (447327).

3131233 is an equidigital number, since it uses as much as digits as its factorization.

3131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447326.

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

The square root of 3131233 is about 1769.5290333871. The cubic root of 3131233 is about 146.2980245040.

Adding to 3131233 its reverse (3321313), we get a palindrome (6452546).

It can be divided in two parts, 3131 and 233, that added together give a square (3364 = 58²).

The spelling of 3131233 in words is "three million, one hundred thirty-one thousand, two hundred thirty-three".