1368118901 has 4 divisors (see below), whose sum is σ = 1368768492. Its totient is φ = 1367469312.

The previous prime is 1368118897. The next prime is 1368118909. The reversal of 1368118901 is 1098118631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 252492100 + 1115626801 = 15890^2 + 33401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368118901 - 2² = 1368118897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368118909) 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 in 3 ways as a sum of consecutive naturals, for example, 321626 + ... + 325851.

It is an arithmetic number, because the mean of its divisors is an integer number (342192123).

Almost surely, 2^1368118901 is an apocalyptic number.

It is an amenable number.

1368118901 is a deficient number, since it is larger than the sum of its proper divisors (649591).

1368118901 is an equidigital number, since it uses as much as digits as its factorization.

1368118901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649590.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 1368118901 is about 36988.0913403220. The cubic root of 1368118901 is about 1110.1319814388.

The spelling of 1368118901 in words is "one billion, three hundred sixty-eight million, one hundred eighteen thousand, nine hundred one".