20164319 has 8 divisors (see below), whose sum is σ = 23200800. Its totient is φ = 17166816.

The previous prime is 20164283. The next prime is 20164321. The reversal of 20164319 is 91346102.

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 20164319 - 2⁸ = 20164063 is a prime.

It is a super-2 number, since 2×20164319² = 813199521467522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8624 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (2900100).

Almost surely, 2^20164319 is an apocalyptic number.

20164319 is a deficient number, since it is larger than the sum of its proper divisors (3036481).

20164319 is a wasteful number, since it uses less digits than its factorization.

20164319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19489.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20164319 is about 4490.4697972484. The cubic root of 20164319 is about 272.1831190135.

The spelling of 20164319 in words is "twenty million, one hundred sixty-four thousand, three hundred nineteen".