1368736841 has 2 divisors, whose sum is σ = 1368736842. Its totient is φ = 1368736840.

The previous prime is 1368736807. The next prime is 1368736847. The reversal of 1368736841 is 1486378631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317399616 + 51337225 = 36296^2 + 7165^2 .

It is an emirp because it is prime and its reverse (1486378631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1368736841 - 2¹⁰ = 1368735817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1368736847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684368420 + 684368421.

It is an arithmetic number, because the mean of its divisors is an integer number (684368421).

Almost surely, 2^1368736841 is an apocalyptic number.

It is an amenable number.

1368736841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368736841 is an equidigital number, since it uses as much as digits as its factorization.

1368736841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 47.

The square root of 1368736841 is about 36996.4436263812. The cubic root of 1368736841 is about 1110.2990945215.

The spelling of 1368736841 in words is "one billion, three hundred sixty-eight million, seven hundred thirty-six thousand, eight hundred forty-one".