164128914 has 48 divisors (see below), whose sum is σ = 382955040. Its totient is φ = 50613120.

The previous prime is 164128879. The next prime is 164128919. The reversal of 164128914 is 419821461.

164128914 is a `hidden beast` number, since 1 + 641 + 2 + 8 + 9 + 1 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (164128919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13509 + ... + 22599.

It is an arithmetic number, because the mean of its divisors is an integer number (7978230).

Almost surely, 2^164128914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164128914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191477520).

164128914 is an abundant number, since it is smaller than the sum of its proper divisors (218826126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164128914 is a wasteful number, since it uses less digits than its factorization.

164128914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175 (or 9172 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 164128914 is about 12811.2807322297. The cubic root of 164128914 is about 547.5137520784.

The spelling of 164128914 in words is "one hundred sixty-four million, one hundred twenty-eight thousand, nine hundred fourteen".