20214115 has 4 divisors (see below), whose sum is σ = 24256944. Its totient is φ = 16171288.

The previous prime is 20214113. The next prime is 20214127. The reversal of 20214115 is 51141202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20214115 - 2¹ = 20214113 is a prime.

It is a super-2 number, since 2×20214115² = 817220890466450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20214113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021407 + ... + 2021416.

It is an arithmetic number, because the mean of its divisors is an integer number (6064236).

Almost surely, 2^20214115 is an apocalyptic number.

20214115 is a deficient number, since it is larger than the sum of its proper divisors (4042829).

20214115 is an equidigital number, since it uses as much as digits as its factorization.

20214115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042828.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 20214115 is about 4496.0110097730. The cubic root of 20214115 is about 272.4069878670.

Adding to 20214115 its reverse (51141202), we get a palindrome (71355317).

The spelling of 20214115 in words is "twenty million, two hundred fourteen thousand, one hundred fifteen".