16440103 has 2 divisors, whose sum is σ = 16440104. Its totient is φ = 16440102.

The previous prime is 16440091. The next prime is 16440113. The reversal of 16440103 is 30104461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16440103 - 2¹⁷ = 16309031 is a prime.

It is a super-3 number, since 3×16440103³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16440113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220051 + 8220052.

It is an arithmetic number, because the mean of its divisors is an integer number (8220052).

Almost surely, 2^16440103 is an apocalyptic number.

16440103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440103 is an equidigital number, since it uses as much as digits as its factorization.

16440103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16440103 is about 4054.6396880611. The cubic root of 16440103 is about 254.2737402607.

Adding to 16440103 its reverse (30104461), we get a palindrome (46544564).

The spelling of 16440103 in words is "sixteen million, four hundred forty thousand, one hundred three".