1361668597 has 2 divisors, whose sum is σ = 1361668598. Its totient is φ = 1361668596.

The previous prime is 1361668591. The next prime is 1361668613. The reversal of 1361668597 is 7958661631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1188456676 + 173211921 = 34474^2 + 13161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361668597 - 2¹¹ = 1361666549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361668591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680834298 + 680834299.

It is an arithmetic number, because the mean of its divisors is an integer number (680834299).

Almost surely, 2^1361668597 is an apocalyptic number.

It is an amenable number.

1361668597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361668597 is an equidigital number, since it uses as much as digits as its factorization.

1361668597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 1361668597 is about 36900.7939887477. The cubic root of 1361668597 is about 1108.3845768130.

The spelling of 1361668597 in words is "one billion, three hundred sixty-one million, six hundred sixty-eight thousand, five hundred ninety-seven".