812274941 has 2 divisors, whose sum is σ = 812274942. Its totient is φ = 812274940.

The previous prime is 812274937. The next prime is 812274959. The reversal of 812274941 is 149472218.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434555716 + 377719225 = 20846^2 + 19435^2 .

It is a cyclic number.

It is not a de Polignac number, because 812274941 - 2² = 812274937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812274895 and 812274904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812274041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406137470 + 406137471.

It is an arithmetic number, because the mean of its divisors is an integer number (406137471).

Almost surely, 2^812274941 is an apocalyptic number.

It is an amenable number.

812274941 is a deficient number, since it is larger than the sum of its proper divisors (1).

812274941 is an equidigital number, since it uses as much as digits as its factorization.

812274941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 812274941 is about 28500.4375580446. The cubic root of 812274941 is about 933.0416237887.

It can be divided in two parts, 81227 and 4941, that added together give a palindrome (86168).

The spelling of 812274941 in words is "eight hundred twelve million, two hundred seventy-four thousand, nine hundred forty-one".