13145651 has 2 divisors, whose sum is σ = 13145652.
Its totient is φ = 13145650.
The previous prime is 13145617. The next prime is 13145681. The reversal of 13145651 is 15654131.
It is a strong prime.
It is an emirp because it is prime and its reverse (15654131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13145651 - 214 = 13129267 is a prime.
It is a Sophie Germain 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 13145651.
It is not a weakly prime, because it can be changed into another prime (13145611) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572825 + 6572826.
It is an arithmetic number, because the mean of its divisors is an integer number (6572826).
Almost surely, 213145651 is an apocalyptic number.
13145651 is a deficient number, since it is larger than the sum of its proper divisors (1).
13145651 is an equidigital number, since it uses as much as digits as its factorization.
13145651 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1800, while the sum is 26.
The square root of 13145651 is about 3625.6931751046.
The cubic root of 13145651 is about 236.0083485987.
Adding to 13145651 its reverse (15654131), we get a palindrome (28799782).
The spelling of 13145651 in words is "thirteen million, one hundred forty-five thousand, six hundred fifty-one".