15680113 has 4 divisors (see below), whose sum is σ = 15708528. Its totient is φ = 15651700.

The previous prime is 15680087. The next prime is 15680117. The reversal of 15680113 is 31108651.

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 a cyclic number.

It is not a de Polignac number, because 15680113 - 2¹⁷ = 15549041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15680117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13363 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (3927132).

Almost surely, 2^15680113 is an apocalyptic number.

It is an amenable number.

15680113 is a deficient number, since it is larger than the sum of its proper divisors (28415).

15680113 is an equidigital number, since it uses as much as digits as its factorization.

15680113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28414.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 15680113 is about 3959.8122430237. The cubic root of 15680113 is about 250.2935910821.

Adding to 15680113 its reverse (31108651), we get a palindrome (46788764).

The spelling of 15680113 in words is "fifteen million, six hundred eighty thousand, one hundred thirteen".