3101972 has 12 divisors (see below), whose sum is σ = 5517876. Its totient is φ = 1525440.

The previous prime is 3101971. The next prime is 3101999. The reversal of 3101972 is 2791013.

3101972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 1628176 = 1214^2 + 1276^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101971) 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, 6113 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (459823).

Almost surely, 2^3101972 is an apocalyptic number.

It is an amenable number.

3101972 is a deficient number, since it is larger than the sum of its proper divisors (2415904).

3101972 is a wasteful number, since it uses less digits than its factorization.

3101972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778 (or 12776 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 3101972 is about 1761.2416075031. The cubic root of 3101972 is about 145.8408850148.

Adding to 3101972 its reverse (2791013), we get a palindrome (5892985).

The spelling of 3101972 in words is "three million, one hundred one thousand, nine hundred seventy-two".