805031155441 has 2 divisors, whose sum is σ = 805031155442. Its totient is φ = 805031155440.

The previous prime is 805031155429. The next prime is 805031155457. The reversal of 805031155441 is 144551130508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644694979041 + 160336176400 = 802929^2 + 400420^2 .

It is a cyclic number.

It is not a de Polignac number, because 805031155441 - 2²¹ = 805029058289 is a prime.

It is a super-2 number, since 2×805031155441² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 805031155441.

It is not a weakly prime, because it can be changed into another prime (805031155241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402515577720 + 402515577721.

It is an arithmetic number, because the mean of its divisors is an integer number (402515577721).

Almost surely, 2^805031155441 is an apocalyptic number.

It is an amenable number.

805031155441 is a deficient number, since it is larger than the sum of its proper divisors (1).

805031155441 is an equidigital number, since it uses as much as digits as its factorization.

805031155441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 805031155441 its reverse (144551130508), we get a palindrome (949582285949).

The spelling of 805031155441 in words is "eight hundred five billion, thirty-one million, one hundred fifty-five thousand, four hundred forty-one".