1368551801 has 2 divisors, whose sum is σ = 1368551802. Its totient is φ = 1368551800.

The previous prime is 1368551791. The next prime is 1368551803. The reversal of 1368551801 is 1081558631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1154368576 + 214183225 = 33976^2 + 14635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368551801 - 2¹⁴ = 1368535417 is a prime.

Together with 1368551803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1368551803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684275900 + 684275901.

It is an arithmetic number, because the mean of its divisors is an integer number (684275901).

Almost surely, 2^1368551801 is an apocalyptic number.

It is an amenable number.

1368551801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368551801 is an equidigital number, since it uses as much as digits as its factorization.

1368551801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 1368551801 is about 36993.9427609440. The cubic root of 1368551801 is about 1110.2490583623.

The spelling of 1368551801 in words is "one billion, three hundred sixty-eight million, five hundred fifty-one thousand, eight hundred one".