13327381 has 2 divisors, whose sum is σ = 13327382. Its totient is φ = 13327380.

The previous prime is 13327361. The next prime is 13327387. The reversal of 13327381 is 18372331.

13327381 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 can be written as a sum of positive squares in only one way, i.e., 13024881 + 302500 = 3609^2 + 550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13327381 is a prime.

It is a super-2 number, since 2×13327381² = 355238168638322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13327387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663690 + 6663691.

It is an arithmetic number, because the mean of its divisors is an integer number (6663691).

Almost surely, 2^13327381 is an apocalyptic number.

It is an amenable number.

13327381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13327381 is an equidigital number, since it uses as much as digits as its factorization.

13327381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 13327381 is about 3650.6685689062. The cubic root of 13327381 is about 237.0909286895.

The spelling of 13327381 in words is "thirteen million, three hundred twenty-seven thousand, three hundred eighty-one".