202115 has 4 divisors (see below), whose sum is σ = 242544. Its totient is φ = 161688.

The previous prime is 202109. The next prime is 202121. The reversal of 202115 is 511202.

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

It is an interprime number because it is at equal distance from previous prime (202109) and next prime (202121).

It is a cyclic number.

It is not a de Polignac number, because 202115 - 2⁴ = 202099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202096 and 202105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20207 + ... + 20216.

It is an arithmetic number, because the mean of its divisors is an integer number (60636).

2²⁰²¹¹⁵ is an apocalyptic number.

202115 is a deficient number, since it is larger than the sum of its proper divisors (40429).

202115 is an equidigital number, since it uses as much as digits as its factorization.

202115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40428.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 202115 is about 449.5720187022. The cubic root of 202115 is about 58.6857755991.

Adding to 202115 its reverse (511202), we get a palindrome (713317).

The spelling of 202115 in words is "two hundred two thousand, one hundred fifteen".