2131072 has 16 divisors (see below), whose sum is σ = 4245750. Its totient is φ = 1065472.

The previous prime is 2131049. The next prime is 2131081. The reversal of 2131072 is 2701312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1577536 + 553536 = 1256^2 + 744^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197 + ... + 8452.

2^2131072 is an apocalyptic number.

It is an amenable number.

2131072 is a deficient number, since it is larger than the sum of its proper divisors (2114678).

2131072 is an equidigital number, since it uses as much as digits as its factorization.

2131072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16663 (or 16651 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2131072 is about 1459.8191668834. The cubic root of 2131072 is about 128.6864165888.

Adding to 2131072 its reverse (2701312), we get a palindrome (4832384).

It can be divided in two parts, 2 and 131072, that multiplied together give a 18-th power (262144 = 2¹⁸).

The spelling of 2131072 in words is "two million, one hundred thirty-one thousand, seventy-two".