13445347 has 2 divisors, whose sum is σ = 13445348. Its totient is φ = 13445346.

The previous prime is 13445321. The next prime is 13445353. The reversal of 13445347 is 74354431.

13445347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (74354431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13445347 - 2⁷ = 13445219 is a prime.

It is not a weakly prime, because it can be changed into another prime (13442347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722673 + 6722674.

It is an arithmetic number, because the mean of its divisors is an integer number (6722674).

Almost surely, 2^13445347 is an apocalyptic number.

13445347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13445347 is an equidigital number, since it uses as much as digits as its factorization.

13445347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 13445347 is about 3666.7897403587. The cubic root of 13445347 is about 237.7884038415.

Adding to 13445347 its reverse (74354431), we get a palindrome (87799778).

The spelling of 13445347 in words is "thirteen million, four hundred forty-five thousand, three hundred forty-seven".