2106056 has 8 divisors (see below), whose sum is σ = 3948870. Its totient is φ = 1053024.

The previous prime is 2106029. The next prime is 2106059. The reversal of 2106056 is 6506012.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 240100 = 1366^2 + 490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2106059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131621 + ... + 131636.

2^2106056 is an apocalyptic number.

It is an amenable number.

2106056 is a deficient number, since it is larger than the sum of its proper divisors (1842814).

2106056 is a wasteful number, since it uses less digits than its factorization.

2106056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263263 (or 263259 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2106056 is about 1451.2256888575. The cubic root of 2106056 is about 128.1808965704.

The spelling of 2106056 in words is "two million, one hundred six thousand, fifty-six".