164175489 has 12 divisors (see below), whose sum is σ = 237290196. Its totient is φ = 109382112.

The previous prime is 164175481. The next prime is 164175547. The reversal of 164175489 is 984571461.

164175489 is a `hidden beast` number, since 164 + 1 + 7 + 5 + 489 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 102819600 + 61355889 = 10140^2 + 7833^2 .

It is not a de Polignac number, because 164175489 - 2³ = 164175481 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164175481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12679 + ... + 22115.

It is an arithmetic number, because the mean of its divisors is an integer number (19774183).

Almost surely, 2^164175489 is an apocalyptic number.

It is an amenable number.

164175489 is a deficient number, since it is larger than the sum of its proper divisors (73114707).

164175489 is a wasteful number, since it uses less digits than its factorization.

164175489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376 (or 11373 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 164175489 is about 12813.0983372485. The cubic root of 164175489 is about 547.5655366598.

The spelling of 164175489 in words is "one hundred sixty-four million, one hundred seventy-five thousand, four hundred eighty-nine".