2100065 has 8 divisors (see below), whose sum is σ = 2749248. Its totient is φ = 1527280.

The previous prime is 2100053. The next prime is 2100071. The reversal of 2100065 is 5600012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2100065 - 2⁶ = 2100001 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 19037 + ... + 19146.

It is an arithmetic number, because the mean of its divisors is an integer number (343656).

2^2100065 is an apocalyptic number.

It is an amenable number.

2100065 is a deficient number, since it is larger than the sum of its proper divisors (649183).

2100065 is a wasteful number, since it uses less digits than its factorization.

2100065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38199.

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

The square root of 2100065 is about 1449.1601015761. The cubic root of 2100065 is about 128.0592377176.

Adding to 2100065 its reverse (5600012), we get a palindrome (7700077).

The spelling of 2100065 in words is "two million, one hundred thousand, sixty-five".