1361365871 has 2 divisors, whose sum is σ = 1361365872. Its totient is φ = 1361365870.

The previous prime is 1361365843. The next prime is 1361365877. The reversal of 1361365871 is 1785631631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361365871 - 2⁶ = 1361365807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361365877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680682935 + 680682936.

It is an arithmetic number, because the mean of its divisors is an integer number (680682936).

Almost surely, 2^1361365871 is an apocalyptic number.

1361365871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361365871 is an equidigital number, since it uses as much as digits as its factorization.

1361365871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 1361365871 is about 36896.6918706813. The cubic root of 1361365871 is about 1108.3024320830.

The spelling of 1361365871 in words is "one billion, three hundred sixty-one million, three hundred sixty-five thousand, eight hundred seventy-one".