801361559 has 2 divisors, whose sum is σ = 801361560. Its totient is φ = 801361558.

The previous prime is 801361531. The next prime is 801361579. The reversal of 801361559 is 955163108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 801361559 - 2⁸ = 801361303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801361579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400680779 + 400680780.

It is an arithmetic number, because the mean of its divisors is an integer number (400680780).

Almost surely, 2^801361559 is an apocalyptic number.

801361559 is a deficient number, since it is larger than the sum of its proper divisors (1).

801361559 is an equidigital number, since it uses as much as digits as its factorization.

801361559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 801361559 is about 28308.3302050827. The cubic root of 801361559 is about 928.8441179820.

The spelling of 801361559 in words is "eight hundred one million, three hundred sixty-one thousand, five hundred fifty-nine".