2085965173 has 2 divisors, whose sum is σ = 2085965174. Its totient is φ = 2085965172.

The previous prime is 2085965153. The next prime is 2085965183. The reversal of 2085965173 is 3715695802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1781008804 + 304956369 = 42202^2 + 17463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085965173 - 2²⁵ = 2052410741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2085965113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042982586 + 1042982587.

It is an arithmetic number, because the mean of its divisors is an integer number (1042982587).

Almost surely, 2^2085965173 is an apocalyptic number.

It is an amenable number.

2085965173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085965173 is an equidigital number, since it uses as much as digits as its factorization.

2085965173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2085965173 is about 45672.3677183480. The cubic root of 2085965173 is about 1277.7199752938.

The spelling of 2085965173 in words is "two billion, eighty-five million, nine hundred sixty-five thousand, one hundred seventy-three".