809081241 has 16 divisors (see below), whose sum is σ = 1086812160. Its totient is φ = 535384080.

The previous prime is 809081239. The next prime is 809081263. The reversal of 809081241 is 142180908.

It is not a de Polignac number, because 809081241 - 2¹ = 809081239 is a prime.

It is a super-2 number, since 2×809081241² = 1309224909076200162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (809081201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251956 + ... + 255146.

It is an arithmetic number, because the mean of its divisors is an integer number (67925760).

Almost surely, 2^809081241 is an apocalyptic number.

It is an amenable number.

809081241 is a deficient number, since it is larger than the sum of its proper divisors (277730919).

809081241 is a wasteful number, since it uses less digits than its factorization.

809081241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 809081241 is about 28444.3534115297. The cubic root of 809081241 is about 931.8171742699.

The spelling of 809081241 in words is "eight hundred nine million, eighty-one thousand, two hundred forty-one".