801219281 has 2 divisors, whose sum is σ = 801219282. Its totient is φ = 801219280.

The previous prime is 801219259. The next prime is 801219313. The reversal of 801219281 is 182912108.

801219281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (801219313) can be obtained adding 801219281 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448380625 + 352838656 = 21175^2 + 18784^2 .

It is a cyclic number.

It is not a de Polignac number, because 801219281 - 2⁶ = 801219217 is a prime.

It is a super-2 number, since 2×801219281² = 1283904672492313922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (801219241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400609640 + 400609641.

It is an arithmetic number, because the mean of its divisors is an integer number (400609641).

Almost surely, 2^801219281 is an apocalyptic number.

It is an amenable number.

801219281 is a deficient number, since it is larger than the sum of its proper divisors (1).

801219281 is an equidigital number, since it uses as much as digits as its factorization.

801219281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 801219281 is about 28305.8170876589. The cubic root of 801219281 is about 928.7891440842.

The spelling of 801219281 in words is "eight hundred one million, two hundred nineteen thousand, two hundred eighty-one".