158066173 has 2 divisors, whose sum is σ = 158066174. Its totient is φ = 158066172.

The previous prime is 158066171. The next prime is 158066197. The reversal of 158066173 is 371660851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115842169 + 42224004 = 10763^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 158066173 - 2¹ = 158066171 is a prime.

Together with 158066171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158066171) 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, 79033086 + 79033087.

It is an arithmetic number, because the mean of its divisors is an integer number (79033087).

Almost surely, 2^158066173 is an apocalyptic number.

It is an amenable number.

158066173 is a deficient number, since it is larger than the sum of its proper divisors (1).

158066173 is an equidigital number, since it uses as much as digits as its factorization.

158066173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 158066173 is about 12572.4370350382. The cubic root of 158066173 is about 540.6874794441.

The spelling of 158066173 in words is "one hundred fifty-eight million, sixty-six thousand, one hundred seventy-three".