3161223 has 24 divisors (see below), whose sum is σ = 5045040. Its totient is φ = 1895040.

The previous prime is 3161209. The next prime is 3161227. The reversal of 3161223 is 3221613.

3161223 is a `hidden beast` number, since 31 + 612 + 23 = 666.

It is not a de Polignac number, because 3161223 - 2⁶ = 3161159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3161196 and 3161205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4468 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (210210).

Almost surely, 2^3161223 is an apocalyptic number.

3161223 is a deficient number, since it is larger than the sum of its proper divisors (1883817).

3161223 is a wasteful number, since it uses less digits than its factorization.

3161223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 716 counting only the distinct ones).

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

The square root of 3161223 is about 1777.9828458115. The cubic root of 3161223 is about 146.7636072850.

Adding to 3161223 its reverse (3221613), we get a palindrome (6382836).

The spelling of 3161223 in words is "three million, one hundred sixty-one thousand, two hundred twenty-three".