1361467817 has 2 divisors, whose sum is σ = 1361467818. Its totient is φ = 1361467816.

The previous prime is 1361467801. The next prime is 1361467867. The reversal of 1361467817 is 7187641631.

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., 1360429456 + 1038361 = 36884^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361467817 - 2⁴ = 1361467801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361467867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680733908 + 680733909.

It is an arithmetic number, because the mean of its divisors is an integer number (680733909).

Almost surely, 2^1361467817 is an apocalyptic number.

It is an amenable number.

1361467817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361467817 is an equidigital number, since it uses as much as digits as its factorization.

1361467817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 1361467817 is about 36898.0733507862. The cubic root of 1361467817 is about 1108.3300965000.

The spelling of 1361467817 in words is "one billion, three hundred sixty-one million, four hundred sixty-seven thousand, eight hundred seventeen".