164128089 has 8 divisors (see below), whose sum is σ = 223493760. Its totient is φ = 107090576.

The previous prime is 164128087. The next prime is 164128103. The reversal of 164128089 is 980821461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164128089 - 2¹ = 164128087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164128087) 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 in 7 ways as a sum of consecutive naturals, for example, 581874 + ... + 582155.

It is an arithmetic number, because the mean of its divisors is an integer number (27936720).

Almost surely, 2^164128089 is an apocalyptic number.

It is an amenable number.

164128089 is a deficient number, since it is larger than the sum of its proper divisors (59365671).

164128089 is a wasteful number, since it uses less digits than its factorization.

164128089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164079.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 164128089 is about 12811.2485340032. The cubic root of 164128089 is about 547.5128347109.

The spelling of 164128089 in words is "one hundred sixty-four million, one hundred twenty-eight thousand, eighty-nine".