1368383281 has 8 divisors (see below), whose sum is σ = 1404233600. Its totient is φ = 1332716112.

The previous prime is 1368383257. The next prime is 1368383297. The reversal of 1368383281 is 1823838631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1368383281 - 2¹⁵ = 1368350513 is a prime.

It is a super-2 number, since 2×1368383281² = 3744945607440649922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368383201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30585 + ... + 60598.

It is an arithmetic number, because the mean of its divisors is an integer number (175529200).

Almost surely, 2^1368383281 is an apocalyptic number.

It is an amenable number.

1368383281 is a deficient number, since it is larger than the sum of its proper divisors (35850319).

1368383281 is an equidigital number, since it uses as much as digits as its factorization.

1368383281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91575.

The product of its digits is 165888, while the sum is 43.

The square root of 1368383281 is about 36991.6650206503. The cubic root of 1368383281 is about 1110.2034854066.

The spelling of 1368383281 in words is "one billion, three hundred sixty-eight million, three hundred eighty-three thousand, two hundred eighty-one".