2101072 has 10 divisors (see below), whose sum is σ = 4070858. Its totient is φ = 1050528.

The previous prime is 2101067. The next prime is 2101091. The reversal of 2101072 is 2701012.

It can be written as a sum of positive squares in only one way, i.e., 1547536 + 553536 = 1244^2 + 744^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65643 + ... + 65674.

2^2101072 is an apocalyptic number.

It is an amenable number.

2101072 is a deficient number, since it is larger than the sum of its proper divisors (1969786).

2101072 is a wasteful number, since it uses less digits than its factorization.

2101072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131325 (or 131319 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 2101072 is about 1449.5075025677. The cubic root of 2101072 is about 128.0797029645.

Adding to 2101072 its reverse (2701012), we get a palindrome (4802084).

The spelling of 2101072 in words is "two million, one hundred one thousand, seventy-two".