16642103 has 2 divisors, whose sum is σ = 16642104. Its totient is φ = 16642102.

The previous prime is 16642097. The next prime is 16642111. The reversal of 16642103 is 30124661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16642103 - 2⁶ = 16642039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16642123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8321051 + 8321052.

It is an arithmetic number, because the mean of its divisors is an integer number (8321052).

Almost surely, 2^16642103 is an apocalyptic number.

16642103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16642103 is an equidigital number, since it uses as much as digits as its factorization.

16642103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16642103 is about 4079.4733728755. The cubic root of 16642103 is about 255.3109266348.

Adding to 16642103 its reverse (30124661), we get a palindrome (46766764).

The spelling of 16642103 in words is "sixteen million, six hundred forty-two thousand, one hundred three".