1368109441 has 4 divisors (see below), whose sum is σ = 1374593584. Its totient is φ = 1361625300.

The previous prime is 1368109427. The next prime is 1368109469. The reversal of 1368109441 is 1449018631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1449018631 = 1741 ⋅832291.

It is a cyclic number.

It is not a de Polignac number, because 1368109441 - 2¹⁵ = 1368076673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1368109441.

It is not an unprimeable number, because it can be changed into a prime (1368109471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3241755 + ... + 3242176.

It is an arithmetic number, because the mean of its divisors is an integer number (343648396).

Almost surely, 2^1368109441 is an apocalyptic number.

It is an amenable number.

1368109441 is a deficient number, since it is larger than the sum of its proper divisors (6484143).

1368109441 is an equidigital number, since it uses as much as digits as its factorization.

1368109441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484142.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1368109441 is about 36987.9634611045. The cubic root of 1368109441 is about 1110.1294227253.

The spelling of 1368109441 in words is "one billion, three hundred sixty-eight million, one hundred nine thousand, four hundred forty-one".