1368121 has 2 divisors, whose sum is σ = 1368122. Its totient is φ = 1368120.

The previous prime is 1368119. The next prime is 1368127. The reversal of 1368121 is 1218631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1354896 + 13225 = 1164^2 + 115^2 .

It is an emirp because it is prime and its reverse (1218631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1368121 - 2¹ = 1368119 is a prime.

Together with 1368119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1368092 and 1368101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684060 + 684061.

It is an arithmetic number, because the mean of its divisors is an integer number (684061).

2^1368121 is an apocalyptic number.

It is an amenable number.

1368121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368121 is an equidigital number, since it uses as much as digits as its factorization.

1368121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 1368121 is about 1169.6670466419. The cubic root of 1368121 is about 111.0132549169.

The spelling of 1368121 in words is "one million, three hundred sixty-eight thousand, one hundred twenty-one".