16545103 has 4 divisors (see below), whose sum is σ = 17078848. Its totient is φ = 16011360.

The previous prime is 16545083. The next prime is 16545107. The reversal of 16545103 is 30154561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30154561 = 4273 ⋅7057.

It is a cyclic number.

It is not a de Polignac number, because 16545103 - 2⁵ = 16545071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266826 + ... + 266887.

It is an arithmetic number, because the mean of its divisors is an integer number (4269712).

Almost surely, 2^16545103 is an apocalyptic number.

16545103 is a deficient number, since it is larger than the sum of its proper divisors (533745).

16545103 is an equidigital number, since it uses as much as digits as its factorization.

16545103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533744.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 16545103 is about 4067.5672090329. The cubic root of 16545103 is about 254.8139255122.

Adding to 16545103 its reverse (30154561), we get a palindrome (46699664).

The spelling of 16545103 in words is "sixteen million, five hundred forty-five thousand, one hundred three".