20162115 has 20 divisors (see below), whose sum is σ = 36143184. Its totient is φ = 10752912.

The previous prime is 20162113. The next prime is 20162123. The reversal of 20162115 is 51126102.

It is not a de Polignac number, because 20162115 - 2¹ = 20162113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20162113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24487 + ... + 25296.

Almost surely, 2^20162115 is an apocalyptic number.

20162115 is a deficient number, since it is larger than the sum of its proper divisors (15981069).

20162115 is an equidigital number, since it uses as much as digits as its factorization.

20162115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49800 (or 49791 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 20162115 is about 4490.2243819212. The cubic root of 20162115 is about 272.1732019342.

Adding to 20162115 its reverse (51126102), we get a palindrome (71288217).

The spelling of 20162115 in words is "twenty million, one hundred sixty-two thousand, one hundred fifteen".