3123712 has 20 divisors (see below), whose sum is σ = 6242346. Its totient is φ = 1561600.

The previous prime is 3123709. The next prime is 3123713. The reversal of 3123712 is 2173213.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 614656 = 1584^2 + 784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3123712.

It is not an unprimeable number, because it can be changed into a prime (3123713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539 + ... + 3562.

Almost surely, 2^3123712 is an apocalyptic number.

3123712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3123712 is a deficient number, since it is larger than the sum of its proper divisors (3118634).

3123712 is an frugal number, since it uses more digits than its factorization.

3123712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6103 counting only the distinct ones).

The product of its digits is 252, while the sum is 19.

The square root of 3123712 is about 1767.4026140073. The cubic root of 3123712 is about 146.1807980979.

Adding to 3123712 its reverse (2173213), we get a palindrome (5296925).

The spelling of 3123712 in words is "three million, one hundred twenty-three thousand, seven hundred twelve".