164170873 has 2 divisors, whose sum is σ = 164170874. Its totient is φ = 164170872.

The previous prime is 164170843. The next prime is 164170891. The reversal of 164170873 is 378071461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154455184 + 9715689 = 12428^2 + 3117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164170873 is a prime.

It is not a weakly prime, because it can be changed into another prime (164170843) 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 as a sum of consecutive naturals, namely, 82085436 + 82085437.

It is an arithmetic number, because the mean of its divisors is an integer number (82085437).

Almost surely, 2^164170873 is an apocalyptic number.

It is an amenable number.

164170873 is a deficient number, since it is larger than the sum of its proper divisors (1).

164170873 is an equidigital number, since it uses as much as digits as its factorization.

164170873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 164170873 is about 12812.9182078089. The cubic root of 164170873 is about 547.5604047808.

The spelling of 164170873 in words is "one hundred sixty-four million, one hundred seventy thousand, eight hundred seventy-three".