13438147 has 2 divisors, whose sum is σ = 13438148. Its totient is φ = 13438146.

The previous prime is 13438129. The next prime is 13438157. The reversal of 13438147 is 74183431.

13438147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13438147 - 2¹¹ = 13436099 is a prime.

It is equal to p₈₇₅₉₁₁ and since 13438147 and 875911 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13438157) 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, 6719073 + 6719074.

It is an arithmetic number, because the mean of its divisors is an integer number (6719074).

Almost surely, 2^13438147 is an apocalyptic number.

13438147 is a deficient number, since it is larger than the sum of its proper divisors (1).

13438147 is an equidigital number, since it uses as much as digits as its factorization.

13438147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 13438147 is about 3665.8078236591. The cubic root of 13438147 is about 237.7459509343.

The spelling of 13438147 in words is "thirteen million, four hundred thirty-eight thousand, one hundred forty-seven".