812695201 has 2 divisors, whose sum is σ = 812695202. Its totient is φ = 812695200.

The previous prime is 812695157. The next prime is 812695207. The reversal of 812695201 is 102596218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738752400 + 73942801 = 27180^2 + 8599^2 .

It is a cyclic number.

It is not a de Polignac number, because 812695201 - 2⁷ = 812695073 is a prime.

It is not a weakly prime, because it can be changed into another prime (812695207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406347600 + 406347601.

It is an arithmetic number, because the mean of its divisors is an integer number (406347601).

Almost surely, 2^812695201 is an apocalyptic number.

It is an amenable number.

812695201 is a deficient number, since it is larger than the sum of its proper divisors (1).

812695201 is an equidigital number, since it uses as much as digits as its factorization.

812695201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 812695201 is about 28507.8094738968. The cubic root of 812695201 is about 933.2025103911.

The spelling of 812695201 in words is "eight hundred twelve million, six hundred ninety-five thousand, two hundred one".