2103555 has 8 divisors (see below), whose sum is σ = 3365712. Its totient is φ = 1121888.

The previous prime is 2103553. The next prime is 2103583. The reversal of 2103555 is 5553012.

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 2103555 - 2¹ = 2103553 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 0 + 3³ + 5³ + 5⁵ + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (2103553) 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, 70104 + ... + 70133.

It is an arithmetic number, because the mean of its divisors is an integer number (420714).

2^2103555 is an apocalyptic number.

2103555 is a deficient number, since it is larger than the sum of its proper divisors (1262157).

2103555 is a wasteful number, since it uses less digits than its factorization.

2103555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140245.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 2103555 is about 1450.3637474785. The cubic root of 2103555 is about 128.1301370139.

Adding to 2103555 its reverse (5553012), we get a palindrome (7656567).

The spelling of 2103555 in words is "two million, one hundred three thousand, five hundred fifty-five".