164473173 has 10 divisors (see below), whose sum is σ = 245694614. Its totient is φ = 109648728.

The previous prime is 164473121. The next prime is 164473193. The reversal of 164473173 is 371374461.

164473173 is a `hidden beast` number, since 1 + 644 + 7 + 3 + 1 + 7 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84603204 + 79869969 = 9198^2 + 8937^2 .

It is not a de Polignac number, because 164473173 - 2⁶ = 164473109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164473193) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1015186 + ... + 1015347.

Almost surely, 2^164473173 is an apocalyptic number.

It is an amenable number.

164473173 is a deficient number, since it is larger than the sum of its proper divisors (81221441).

164473173 is an equidigital number, since it uses as much as digits as its factorization.

164473173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030545 (or 2030536 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 164473173 is about 12824.7094703935. The cubic root of 164473173 is about 547.8962865601.

The spelling of 164473173 in words is "one hundred sixty-four million, four hundred seventy-three thousand, one hundred seventy-three".