810900941 has 2 divisors, whose sum is σ = 810900942. Its totient is φ = 810900940.

The previous prime is 810900907. The next prime is 810900947. The reversal of 810900941 is 149009018.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568631716 + 242269225 = 23846^2 + 15565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-810900941 is a prime.

It is a super-2 number, since 2×810900941² = 1315120672229370962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 810900898 and 810900907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810900947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405450470 + 405450471.

It is an arithmetic number, because the mean of its divisors is an integer number (405450471).

Almost surely, 2^810900941 is an apocalyptic number.

It is an amenable number.

810900941 is a deficient number, since it is larger than the sum of its proper divisors (1).

810900941 is an equidigital number, since it uses as much as digits as its factorization.

810900941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 810900941 is about 28476.3224627057. The cubic root of 810900941 is about 932.5152327603.

Adding to 810900941 its reverse (149009018), we get a palindrome (959909959).

The spelling of 810900941 in words is "eight hundred ten million, nine hundred thousand, nine hundred forty-one".