2115712 has 16 divisors (see below), whose sum is σ = 4215150. Its totient is φ = 1057792.

The previous prime is 2115703. The next prime is 2115713. The reversal of 2115712 is 2175112.

It can be written as a sum of positive squares in only one way, i.e., 1382976 + 732736 = 1176^2 + 856^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 2115712.

It is not an unprimeable number, because it can be changed into a prime (2115713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8137 + ... + 8392.

2^2115712 is an apocalyptic number.

It is an amenable number.

2115712 is a deficient number, since it is larger than the sum of its proper divisors (2099438).

2115712 is an equidigital number, since it uses as much as digits as its factorization.

2115712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16543 (or 16531 counting only the distinct ones).

The product of its digits is 140, while the sum is 19.

The square root of 2115712 is about 1454.5487272690. The cubic root of 2115712 is about 128.3764956669.

The spelling of 2115712 in words is "two million, one hundred fifteen thousand, seven hundred twelve".