200115 has 12 divisors (see below), whose sum is σ = 346944. Its totient is φ = 106704.

The previous prime is 200087. The next prime is 200117. The reversal of 200115 is 511002.

It is a happy number.

It is not a de Polignac number, because 200115 - 2⁹ = 199603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200097 and 200106.

It is not an unprimeable number, because it can be changed into a prime (200117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2179 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (28912).

2²⁰⁰¹¹⁵ is an apocalyptic number.

200115 is a deficient number, since it is larger than the sum of its proper divisors (146829).

200115 is a wasteful number, since it uses less digits than its factorization.

200115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 200115 is about 447.3421509315. The cubic root of 200115 is about 58.4915613513.

Adding to 200115 its reverse (511002), we get a palindrome (711117).

It can be divided in two parts, 2001 and 15, that added together give a triangular number (2016 = T₆₃).

The spelling of 200115 in words is "two hundred thousand, one hundred fifteen".