13216751 has 2 divisors, whose sum is σ = 13216752. Its totient is φ = 13216750.

The previous prime is 13216741. The next prime is 13216783. The reversal of 13216751 is 15761231.

It is a weak prime.

It is an emirp because it is prime and its reverse (15761231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13216751 - 2¹⁸ = 12954607 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13216751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608375 + 6608376.

It is an arithmetic number, because the mean of its divisors is an integer number (6608376).

Almost surely, 2^13216751 is an apocalyptic number.

13216751 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216751 is an equidigital number, since it uses as much as digits as its factorization.

13216751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 13216751 is about 3635.4849745254. The cubic root of 13216751 is about 236.4330779515.

Adding to 13216751 its reverse (15761231), we get a palindrome (28977982).

The spelling of 13216751 in words is "thirteen million, two hundred sixteen thousand, seven hundred fifty-one".