20214165 has 8 divisors (see below), whose sum is σ = 32342688. Its totient is φ = 10780880.

The previous prime is 20214163. The next prime is 20214193. The reversal of 20214165 is 56141202.

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

It is not a de Polignac number, because 20214165 - 2¹ = 20214163 is a prime.

It is a super-2 number, since 2×20214165² = 817224933294450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214163) 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, 673791 + ... + 673820.

It is an arithmetic number, because the mean of its divisors is an integer number (4042836).

Almost surely, 2^20214165 is an apocalyptic number.

It is an amenable number.

20214165 is a deficient number, since it is larger than the sum of its proper divisors (12128523).

20214165 is a wasteful number, since it uses less digits than its factorization.

20214165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347619.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20214165 is about 4496.0165702542. The cubic root of 20214165 is about 272.4072124681.

Adding to 20214165 its reverse (56141202), we get a palindrome (76355367).

It can be divided in two parts, 20 and 214165, that added together give a triangular number (214185 = T₆₅₄).

The spelling of 20214165 in words is "twenty million, two hundred fourteen thousand, one hundred sixty-five".