2120065 has 8 divisors (see below), whose sum is σ = 2560320. Its totient is φ = 1685232.

The previous prime is 2120057. The next prime is 2120093. The reversal of 2120065 is 5600212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2120065 - 2³ = 2120057 is a prime.

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, 435 + ... + 2104.

It is an arithmetic number, because the mean of its divisors is an integer number (320040).

2^2120065 is an apocalyptic number.

It is an amenable number.

2120065 is a deficient number, since it is larger than the sum of its proper divisors (440255).

2120065 is a wasteful number, since it uses less digits than its factorization.

2120065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2120065 is about 1456.0442987767. The cubic root of 2120065 is about 128.4644786675.

Adding to 2120065 its reverse (5600212), we get a palindrome (7720277).

The spelling of 2120065 in words is "two million, one hundred twenty thousand, sixty-five".