13281377 has 2 divisors, whose sum is σ = 13281378. Its totient is φ = 13281376.

The previous prime is 13281371. The next prime is 13281427. The reversal of 13281377 is 77318231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8620096 + 4661281 = 2936^2 + 2159^2 .

It is an emirp because it is prime and its reverse (77318231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13281377 - 2¹⁰ = 13280353 is a prime.

It is a super-2 number, since 2×13281377² = 352789950032258, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (13281371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640688 + 6640689.

It is an arithmetic number, because the mean of its divisors is an integer number (6640689).

Almost surely, 2^13281377 is an apocalyptic number.

It is an amenable number.

13281377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13281377 is an equidigital number, since it uses as much as digits as its factorization.

13281377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 13281377 is about 3644.3623584929. The cubic root of 13281377 is about 236.8178141368.

The spelling of 13281377 in words is "thirteen million, two hundred eighty-one thousand, three hundred seventy-seven".