2005106 has 4 divisors (see below), whose sum is σ = 3007662. Its totient is φ = 1002552.

The previous prime is 2005103. The next prime is 2005121. The reversal of 2005106 is 6015002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 70225 = 1391^2 + 265^2 .

It is not an unprimeable number, because it can be changed into a prime (2005103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501275 + ... + 501278.

2^2005106 is an apocalyptic number.

2005106 is a deficient number, since it is larger than the sum of its proper divisors (1002556).

2005106 is a wasteful number, since it uses less digits than its factorization.

2005106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002555.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2005106 is about 1416.0176552572. The cubic root of 2005106 is about 126.0992331564.

The spelling of 2005106 in words is "two million, five thousand, one hundred six".