2105503 has 2 divisors, whose sum is σ = 2105504. Its totient is φ = 2105502.

The previous prime is 2105497. The next prime is 2105507. The reversal of 2105503 is 3055012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105503 - 2¹³ = 2097311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052751 + 1052752.

It is an arithmetic number, because the mean of its divisors is an integer number (1052752).

2^2105503 is an apocalyptic number.

2105503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105503 is an equidigital number, since it uses as much as digits as its factorization.

2105503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2105503 is about 1451.0351477480. The cubic root of 2105503 is about 128.1696765078.

The spelling of 2105503 in words is "two million, one hundred five thousand, five hundred three".