3181423 has 6 divisors (see below), whose sum is σ = 3700896. Its totient is φ = 2726892.

The previous prime is 3181421. The next prime is 3181447. The reversal of 3181423 is 3241813.

It is not a de Polignac number, because 3181423 - 2¹ = 3181421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3181394 and 3181403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3181421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32415 + ... + 32512.

It is an arithmetic number, because the mean of its divisors is an integer number (616816).

Almost surely, 2^3181423 is an apocalyptic number.

3181423 is a deficient number, since it is larger than the sum of its proper divisors (519473).

3181423 is an equidigital number, since it uses as much as digits as its factorization.

3181423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64941 (or 64934 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 3181423 is about 1783.6543947750. The cubic root of 3181423 is about 147.0755469578.

The spelling of 3181423 in words is "three million, one hundred eighty-one thousand, four hundred twenty-three".