16135817 has 2 divisors, whose sum is σ = 16135818. Its totient is φ = 16135816.

The previous prime is 16135813. The next prime is 16135849. The reversal of 16135817 is 71853161.

It is an a-pointer prime, because the next prime (16135849) can be obtained adding 16135817 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 3575881 = 3544^2 + 1891^2 .

It is an emirp because it is prime and its reverse (71853161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16135817 - 2² = 16135813 is a prime.

It is a Chen prime.

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (16135813) 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 as a sum of consecutive naturals, namely, 8067908 + 8067909.

It is an arithmetic number, because the mean of its divisors is an integer number (8067909).

Almost surely, 2^16135817 is an apocalyptic number.

It is an amenable number.

16135817 is a deficient number, since it is larger than the sum of its proper divisors (1).

16135817 is an equidigital number, since it uses as much as digits as its factorization.

16135817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 16135817 is about 4016.9412492592. The cubic root of 16135817 is about 252.6951965782.

Adding to 16135817 its reverse (71853161), we get a palindrome (87988978).

The spelling of 16135817 in words is "sixteen million, one hundred thirty-five thousand, eight hundred seventeen".