7285161173 has 2 divisors, whose sum is σ = 7285161174. Its totient is φ = 7285161172.

The previous prime is 7285161101. The next prime is 7285161187. The reversal of 7285161173 is 3711615827.

It is a happy number.

7285161173 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5036315089 + 2248846084 = 70967^2 + 47422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7285161173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7285161173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7285161673) 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, 3642580586 + 3642580587.

It is an arithmetic number, because the mean of its divisors is an integer number (3642580587).

Almost surely, 2^7285161173 is an apocalyptic number.

It is an amenable number.

7285161173 is a deficient number, since it is larger than the sum of its proper divisors (1).

7285161173 is an equidigital number, since it uses as much as digits as its factorization.

7285161173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 7285161173 is about 85353.1556124318. The cubic root of 7285161173 is about 1938.5621163308.

The spelling of 7285161173 in words is "seven billion, two hundred eighty-five million, one hundred sixty-one thousand, one hundred seventy-three".