1368118397 has 2 divisors, whose sum is σ = 1368118398. Its totient is φ = 1368118396.

The previous prime is 1368118391. The next prime is 1368118399. The reversal of 1368118397 is 7938118631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903543481 + 464574916 = 30059^2 + 21554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368118397 - 2¹² = 1368114301 is a prime.

Together with 1368118399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368118391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684059198 + 684059199.

It is an arithmetic number, because the mean of its divisors is an integer number (684059199).

Almost surely, 2^1368118397 is an apocalyptic number.

It is an amenable number.

1368118397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368118397 is an equidigital number, since it uses as much as digits as its factorization.

1368118397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 1368118397 is about 36988.0845273177. The cubic root of 1368118397 is about 1110.1318451186.

The spelling of 1368118397 in words is "one billion, three hundred sixty-eight million, one hundred eighteen thousand, three hundred ninety-seven".