13813147 has 2 divisors, whose sum is σ = 13813148. Its totient is φ = 13813146.

The previous prime is 13813127. The next prime is 13813153. The reversal of 13813147 is 74131831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13813147 - 2¹⁵ = 13780379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13813127) 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, 6906573 + 6906574.

It is an arithmetic number, because the mean of its divisors is an integer number (6906574).

Almost surely, 2^13813147 is an apocalyptic number.

13813147 is a deficient number, since it is larger than the sum of its proper divisors (1).

13813147 is an equidigital number, since it uses as much as digits as its factorization.

13813147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 13813147 is about 3716.6042296699. The cubic root of 13813147 is about 239.9371768437.

Adding to 13813147 its reverse (74131831), we get a palindrome (87944978).

The spelling of 13813147 in words is "thirteen million, eight hundred thirteen thousand, one hundred forty-seven".