811458941 has 2 divisors, whose sum is σ = 811458942. Its totient is φ = 811458940.

The previous prime is 811458931. The next prime is 811458953. The reversal of 811458941 is 149854118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738698041 + 72760900 = 27179^2 + 8530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-811458941 is a prime.

It is a super-2 number, since 2×811458941² = 1316931225857682962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (811458931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405729470 + 405729471.

It is an arithmetic number, because the mean of its divisors is an integer number (405729471).

Almost surely, 2^811458941 is an apocalyptic number.

It is an amenable number.

811458941 is a deficient number, since it is larger than the sum of its proper divisors (1).

811458941 is an equidigital number, since it uses as much as digits as its factorization.

811458941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 41.

The square root of 811458941 is about 28486.1183912445. The cubic root of 811458941 is about 932.7290789347.

The spelling of 811458941 in words is "eight hundred eleven million, four hundred fifty-eight thousand, nine hundred forty-one".