16504113 has 4 divisors (see below), whose sum is σ = 22005488. Its totient is φ = 11002740.

The previous prime is 16504079. The next prime is 16504139. The reversal of 16504113 is 31140561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16504113 - 2⁶ = 16504049 is a prime.

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 16504113.

It is not an unprimeable number, because it can be changed into a prime (16504513) 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, 2750683 + ... + 2750688.

It is an arithmetic number, because the mean of its divisors is an integer number (5501372).

Almost surely, 2^16504113 is an apocalyptic number.

It is an amenable number.

16504113 is a deficient number, since it is larger than the sum of its proper divisors (5501375).

16504113 is an equidigital number, since it uses as much as digits as its factorization.

16504113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501374.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 16504113 is about 4062.5254460742. The cubic root of 16504113 is about 254.6033201894.

Adding to 16504113 its reverse (31140561), we get a palindrome (47644674).

The spelling of 16504113 in words is "sixteen million, five hundred four thousand, one hundred thirteen".