16603113 has 8 divisors (see below), whose sum is σ = 22170400. Its totient is φ = 11052288.

The previous prime is 16603099. The next prime is 16603127. The reversal of 16603113 is 31130661.

It is an interprime number because it is at equal distance from previous prime (16603099) and next prime (16603127).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16603113 - 2¹⁷ = 16472041 is a prime.

It is a super-2 number, since 2×16603113² = 551326722581538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16603113.

It is not an unprimeable number, because it can be changed into a prime (16603313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (2771300).

Almost surely, 2^16603113 is an apocalyptic number.

It is an amenable number.

16603113 is a deficient number, since it is larger than the sum of its proper divisors (5567287).

16603113 is an equidigital number, since it uses as much as digits as its factorization.

16603113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8231.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 16603113 is about 4074.6917674838. The cubic root of 16603113 is about 255.1113854030. Note that the first 3 decimals are identical.

Adding to 16603113 its reverse (31130661), we get a palindrome (47733774).

The spelling of 16603113 in words is "sixteen million, six hundred three thousand, one hundred thirteen".