1368281 has 2 divisors, whose sum is σ = 1368282. Its totient is φ = 1368280.

The previous prime is 1368271. The next prime is 1368287. The reversal of 1368281 is 1828631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855625 + 512656 = 925^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368281 - 2¹⁰ = 1367257 is a prime.

It is a super-2 number, since 2×1368281² = 3744385789922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1368287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684140 + 684141.

It is an arithmetic number, because the mean of its divisors is an integer number (684141).

2^1368281 is an apocalyptic number.

It is an amenable number.

1368281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368281 is an equidigital number, since it uses as much as digits as its factorization.

1368281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 1368281 is about 1169.7354401744. The cubic root of 1368281 is about 111.0175823675.

The spelling of 1368281 in words is "one million, three hundred sixty-eight thousand, two hundred eighty-one".