16113613 has 2 divisors, whose sum is σ = 16113614. Its totient is φ = 16113612.

The previous prime is 16113607. The next prime is 16113631. The reversal of 16113613 is 31631161.

It is a happy number.

Together with next prime (16113631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9753129 + 6360484 = 3123^2 + 2522^2 .

It is an emirp because it is prime and its reverse (31631161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16113613 - 2⁹ = 16113101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16113673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8056806 + 8056807.

It is an arithmetic number, because the mean of its divisors is an integer number (8056807).

Almost surely, 2^16113613 is an apocalyptic number.

It is an amenable number.

16113613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16113613 is an equidigital number, since it uses as much as digits as its factorization.

16113613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

The square root of 16113613 is about 4014.1765033441. The cubic root of 16113613 is about 252.5792346832.

Adding to 16113613 its reverse (31631161), we get a palindrome (47744774).

The spelling of 16113613 in words is "sixteen million, one hundred thirteen thousand, six hundred thirteen".