3131223 has 8 divisors (see below), whose sum is σ = 4185600. Its totient is φ = 2082168.

The previous prime is 3131221. The next prime is 3131231. The reversal of 3131223 is 3221313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3131223 - 2¹ = 3131221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 2526.

It is an arithmetic number, because the mean of its divisors is an integer number (523200).

Almost surely, 2^3131223 is an apocalyptic number.

3131223 is a deficient number, since it is larger than the sum of its proper divisors (1054377).

3131223 is a wasteful number, since it uses less digits than its factorization.

3131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661.

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

The square root of 3131223 is about 1769.5262077743. The cubic root of 3131223 is about 146.2978687632.

Adding to 3131223 its reverse (3221313), we get a palindrome (6352536).

The spelling of 3131223 in words is "three million, one hundred thirty-one thousand, two hundred twenty-three".