20164134 has 8 divisors (see below), whose sum is σ = 40328280. Its totient is φ = 6721376.

The previous prime is 20164127. The next prime is 20164139. The reversal of 20164134 is 43146102.

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

20164134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20164134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164139) 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 3 ways as a sum of consecutive naturals, for example, 1680339 + ... + 1680350.

It is an arithmetic number, because the mean of its divisors is an integer number (5041035).

Almost surely, 2^20164134 is an apocalyptic number.

20164134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20164134 is a wasteful number, since it uses less digits than its factorization.

20164134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360694.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20164134 is about 4490.4491980202. The cubic root of 20164134 is about 272.1822866185.

The spelling of 20164134 in words is "twenty million, one hundred sixty-four thousand, one hundred thirty-four".