813546941 has 2 divisors, whose sum is σ = 813546942. Its totient is φ = 813546940.

The previous prime is 813546931. The next prime is 813546983. The reversal of 813546941 is 149645318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 587044441 + 226502500 = 24229^2 + 15050^2 .

It is a cyclic number.

It is not a de Polignac number, because 813546941 - 2²² = 809352637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813546901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406773470 + 406773471.

It is an arithmetic number, because the mean of its divisors is an integer number (406773471).

Almost surely, 2^813546941 is an apocalyptic number.

It is an amenable number.

813546941 is a deficient number, since it is larger than the sum of its proper divisors (1).

813546941 is an equidigital number, since it uses as much as digits as its factorization.

813546941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 813546941 is about 28522.7442754024. The cubic root of 813546941 is about 933.5284088702.

The spelling of 813546941 in words is "eight hundred thirteen million, five hundred forty-six thousand, nine hundred forty-one".