6131223 has 18 divisors (see below), whose sum is σ = 10302864. Its totient is φ = 3503304.

The previous prime is 6131219. The next prime is 6131239. The reversal of 6131223 is 3221316.

It is not a de Polignac number, because 6131223 - 2² = 6131219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6131196 and 6131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131423) 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 17 ways as a sum of consecutive naturals, for example, 6511 + ... + 7392.

Almost surely, 2^6131223 is an apocalyptic number.

6131223 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6131223 is a deficient number, since it is larger than the sum of its proper divisors (4171641).

6131223 is a wasteful number, since it uses less digits than its factorization.

6131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13923 (or 13913 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 6131223 is about 2476.1306508341. The cubic root of 6131223 is about 183.0272287711.

Adding to 6131223 its reverse (3221316), we get a palindrome (9352539).

The spelling of 6131223 in words is "six million, one hundred thirty-one thousand, two hundred twenty-three".