1368205973 has 2 divisors, whose sum is σ = 1368205974. Its totient is φ = 1368205972.

The previous prime is 1368205961. The next prime is 1368206033. The reversal of 1368205973 is 3795028631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787251364 + 580954609 = 28058^2 + 24103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1368205973 - 2²² = 1364011669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368205913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684102986 + 684102987.

It is an arithmetic number, because the mean of its divisors is an integer number (684102987).

Almost surely, 2^1368205973 is an apocalyptic number.

It is an amenable number.

1368205973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368205973 is an equidigital number, since it uses as much as digits as its factorization.

1368205973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1368205973 is about 36989.2683490766. The cubic root of 1368205973 is about 1110.1555318678.

The spelling of 1368205973 in words is "one billion, three hundred sixty-eight million, two hundred five thousand, nine hundred seventy-three".