2103105 has 8 divisors (see below), whose sum is σ = 3364992. Its totient is φ = 1121648.

The previous prime is 2103103. The next prime is 2103107. The reversal of 2103105 is 5013012.

It is an interprime number because it is at equal distance from previous prime (2103103) and next prime (2103107).

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 2103105 - 2¹ = 2103103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103103) by changing a digit.

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, 70089 + ... + 70118.

It is an arithmetic number, because the mean of its divisors is an integer number (420624).

2^2103105 is an apocalyptic number.

It is an amenable number.

2103105 is a deficient number, since it is larger than the sum of its proper divisors (1261887).

2103105 is a wasteful number, since it uses less digits than its factorization.

2103105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140215.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2103105 is about 1450.2086056840. The cubic root of 2103105 is about 128.1209996768.

Adding to 2103105 its reverse (5013012), we get a palindrome (7116117).

The spelling of 2103105 in words is "two million, one hundred three thousand, one hundred five".