13545251 has 2 divisors, whose sum is σ = 13545252. Its totient is φ = 13545250.

The previous prime is 13545247. The next prime is 13545253. The reversal of 13545251 is 15254531.

It is a strong prime.

It is an emirp because it is prime and its reverse (15254531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13545251 - 2² = 13545247 is a prime.

Together with 13545253, it forms a pair of twin primes.

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 13545251.

It is not a weakly prime, because it can be changed into another prime (13545253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6772625 + 6772626.

It is an arithmetic number, because the mean of its divisors is an integer number (6772626).

Almost surely, 2^13545251 is an apocalyptic number.

13545251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13545251 is an equidigital number, since it uses as much as digits as its factorization.

13545251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 26.

The square root of 13545251 is about 3680.3873437452. The cubic root of 13545251 is about 238.3759036330.

Adding to 13545251 its reverse (15254531), we get a palindrome (28799782).

The spelling of 13545251 in words is "thirteen million, five hundred forty-five thousand, two hundred fifty-one".