2103065 has 4 divisors (see below), whose sum is σ = 2523684. Its totient is φ = 1682448.

The previous prime is 2103041. The next prime is 2103067. The reversal of 2103065 is 5603012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 1646089 = 676^2 + 1283^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103065 - 2⁸ = 2102809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210302 + ... + 210311.

It is an arithmetic number, because the mean of its divisors is an integer number (630921).

2^2103065 is an apocalyptic number.

It is an amenable number.

2103065 is a deficient number, since it is larger than the sum of its proper divisors (420619).

2103065 is an equidigital number, since it uses as much as digits as its factorization.

2103065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420618.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2103065 is about 1450.1948144991. The cubic root of 2103065 is about 128.1201874060.

Adding to 2103065 its reverse (5603012), we get a palindrome (7706077).

The spelling of 2103065 in words is "two million, one hundred three thousand, sixty-five".