3131672 has 16 divisors (see below), whose sum is σ = 6217560. Its totient is φ = 1473664.

The previous prime is 3131671. The next prime is 3131699. The reversal of 3131672 is 2761313.

It is a happy number.

3131672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11378 + ... + 11649.

Almost surely, 2^3131672 is an apocalyptic number.

It is an amenable number.

3131672 is a deficient number, since it is larger than the sum of its proper divisors (3085888).

3131672 is a wasteful number, since it uses less digits than its factorization.

3131672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23050 (or 23046 counting only the distinct ones).

The product of its digits is 756, while the sum is 23.

The square root of 3131672 is about 1769.6530733452. The cubic root of 3131672 is about 146.3048611965.

Adding to 3131672 its reverse (2761313), we get a palindrome (5892985).

The spelling of 3131672 in words is "three million, one hundred thirty-one thousand, six hundred seventy-two".