818834101 has 2 divisors, whose sum is σ = 818834102. Its totient is φ = 818834100.

The previous prime is 818834099. The next prime is 818834113. The reversal of 818834101 is 101438818.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 818818225 + 15876 = 28615^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 818834101 - 2¹ = 818834099 is a prime.

Together with 818834099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (818804101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409417050 + 409417051.

It is an arithmetic number, because the mean of its divisors is an integer number (409417051).

Almost surely, 2^818834101 is an apocalyptic number.

It is an amenable number.

818834101 is a deficient number, since it is larger than the sum of its proper divisors (1).

818834101 is an equidigital number, since it uses as much as digits as its factorization.

818834101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 818834101 is about 28615.2774056098. The cubic root of 818834101 is about 935.5463462155.

The spelling of 818834101 in words is "eight hundred eighteen million, eight hundred thirty-four thousand, one hundred one".