20164043 has 8 divisors (see below), whose sum is σ = 21012480. Its totient is φ = 19328040.

The previous prime is 20164013. The next prime is 20164049. The reversal of 20164043 is 34046102.

It is a happy number.

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 20164043 - 2¹² = 20159947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20164049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (2626560).

Almost surely, 2^20164043 is an apocalyptic number.

20164043 is a deficient number, since it is larger than the sum of its proper divisors (848437).

20164043 is a wasteful number, since it uses less digits than its factorization.

20164043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20164043 is about 4490.4390653922. The cubic root of 20164043 is about 272.1818771684.

The spelling of 20164043 in words is "twenty million, one hundred sixty-four thousand, forty-three".