2103965 has 8 divisors (see below), whose sum is σ = 2657760. Its totient is φ = 1594512.

The previous prime is 2103961. The next prime is 2103973. The reversal of 2103965 is 5693012.

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 2103965 - 2² = 2103961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10979 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (332220).

2^2103965 is an apocalyptic number.

It is an amenable number.

2103965 is a deficient number, since it is larger than the sum of its proper divisors (553795).

2103965 is a wasteful number, since it uses less digits than its factorization.

2103965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22171.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2103965 is about 1450.5050844447. The cubic root of 2103965 is about 128.1384610089.

Adding to 2103965 its reverse (5693012), we get a palindrome (7796977).

The spelling of 2103965 in words is "two million, one hundred three thousand, nine hundred sixty-five".