818010913 has 4 divisors (see below), whose sum is σ = 866129220. Its totient is φ = 769892608.

The previous prime is 818010881. The next prime is 818010931. The reversal of 818010913 is 319010818.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472497169 + 345513744 = 21737^2 + 18588^2 .

It is a cyclic number.

It is not a de Polignac number, because 818010913 - 2⁵ = 818010881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818010953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24059128 + ... + 24059161.

It is an arithmetic number, because the mean of its divisors is an integer number (216532305).

Almost surely, 2^818010913 is an apocalyptic number.

It is an amenable number.

818010913 is a deficient number, since it is larger than the sum of its proper divisors (48118307).

818010913 is a wasteful number, since it uses less digits than its factorization.

818010913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48118306.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 818010913 is about 28600.8900735624. The cubic root of 818010913 is about 935.2327341566.

The spelling of 818010913 in words is "eight hundred eighteen million, ten thousand, nine hundred thirteen".