2103455 has 4 divisors (see below), whose sum is σ = 2524152. Its totient is φ = 1682760.

The previous prime is 2103449. The next prime is 2103473. The reversal of 2103455 is 5543012.

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

It is not a de Polignac number, because 2103455 - 2¹⁰ = 2102431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210341 + ... + 210350.

It is an arithmetic number, because the mean of its divisors is an integer number (631038).

2^2103455 is an apocalyptic number.

2103455 is a deficient number, since it is larger than the sum of its proper divisors (420697).

2103455 is an equidigital number, since it uses as much as digits as its factorization.

2103455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420696.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2103455 is about 1450.3292729584. The cubic root of 2103455 is about 128.1281066072.

Adding to 2103455 its reverse (5543012), we get a palindrome (7646467).

The spelling of 2103455 in words is "two million, one hundred three thousand, four hundred fifty-five".