13347641 has 2 divisors, whose sum is σ = 13347642. Its totient is φ = 13347640.

The previous prime is 13347637. The next prime is 13347643. The reversal of 13347641 is 14674331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 674041 = 3560^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 13347641 - 2² = 13347637 is a prime.

Together with 13347643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13347643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6673820 + 6673821.

It is an arithmetic number, because the mean of its divisors is an integer number (6673821).

Almost surely, 2^13347641 is an apocalyptic number.

It is an amenable number.

13347641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13347641 is an equidigital number, since it uses as much as digits as its factorization.

13347641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 13347641 is about 3653.4423493467. The cubic root of 13347641 is about 237.2110080516.

It can be divided in two parts, 133 and 47641, that added together give a palindrome (47774).

The spelling of 13347641 in words is "thirteen million, three hundred forty-seven thousand, six hundred forty-one".