20164361 has 8 divisors (see below), whose sum is σ = 23179584. Its totient is φ = 17182800.

The previous prime is 20164357. The next prime is 20164373. The reversal of 20164361 is 16346102.

It is a happy number.

20164361 is nontrivially palindromic in base 8.

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 20164361 - 2² = 20164357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20164321) 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, 7115 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (2897448).

Almost surely, 2^20164361 is an apocalyptic number.

It is an amenable number.

20164361 is a deficient number, since it is larger than the sum of its proper divisors (3015223).

20164361 is a wasteful number, since it uses less digits than its factorization.

20164361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16831.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20164361 is about 4490.4744738168. The cubic root of 20164361 is about 272.1833079889.

It can be divided in two parts, 20164 and 361, that multiplied together give a square (7279204 = 2698²).

The spelling of 20164361 in words is "twenty million, one hundred sixty-four thousand, three hundred sixty-one".