818752601 has 2 divisors, whose sum is σ = 818752602. Its totient is φ = 818752600.

The previous prime is 818752573. The next prime is 818752607. The reversal of 818752601 is 106257818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697224025 + 121528576 = 26405^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 818752601 - 2⁶ = 818752537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (818752607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409376300 + 409376301.

It is an arithmetic number, because the mean of its divisors is an integer number (409376301).

Almost surely, 2^818752601 is an apocalyptic number.

It is an amenable number.

818752601 is a deficient number, since it is larger than the sum of its proper divisors (1).

818752601 is an equidigital number, since it uses as much as digits as its factorization.

818752601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 818752601 is about 28613.8533056979. The cubic root of 818752601 is about 935.5153063272.

The spelling of 818752601 in words is "eight hundred eighteen million, seven hundred fifty-two thousand, six hundred one".