1662103 has 2 divisors, whose sum is σ = 1662104. Its totient is φ = 1662102.

The previous prime is 1662083. The next prime is 1662119. The reversal of 1662103 is 3012661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1662103 - 2¹⁷ = 1531031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1662163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831051 + 831052.

It is an arithmetic number, because the mean of its divisors is an integer number (831052).

2^1662103 is an apocalyptic number.

1662103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662103 is an equidigital number, since it uses as much as digits as its factorization.

1662103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1662103 is about 1289.2257366342. The cubic root of 1662103 is about 118.4547947236.

Adding to 1662103 its reverse (3012661), we get a palindrome (4674764).

The spelling of 1662103 in words is "one million, six hundred sixty-two thousand, one hundred three".