2113620169 has 2 divisors, whose sum is σ = 2113620170. Its totient is φ = 2113620168.

The previous prime is 2113620163. The next prime is 2113620191. The reversal of 2113620169 is 9610263112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088490000 + 25130169 = 45700^2 + 5013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113620169 is a prime.

It is a super-2 number, since 2×2113620169² = 8934780437607177122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2113620169.

It is not a weakly prime, because it can be changed into another prime (2113620163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056810084 + 1056810085.

It is an arithmetic number, because the mean of its divisors is an integer number (1056810085).

Almost surely, 2^2113620169 is an apocalyptic number.

It is an amenable number.

2113620169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113620169 is an equidigital number, since it uses as much as digits as its factorization.

2113620169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2113620169 is about 45974.1249943922. The cubic root of 2113620169 is about 1283.3417256474.

The spelling of 2113620169 in words is "two billion, one hundred thirteen million, six hundred twenty thousand, one hundred sixty-nine".