2100115 has 8 divisors (see below), whose sum is σ = 2558160. Its totient is φ = 1654752.

The previous prime is 2100113. The next prime is 2100121. The reversal of 2100115 is 5110012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2100115 - 2¹ = 2100113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100113) 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, 2800 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (319770).

2^2100115 is an apocalyptic number.

2100115 is a deficient number, since it is larger than the sum of its proper divisors (458045).

2100115 is an equidigital number, since it uses as much as digits as its factorization.

2100115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341.

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

The square root of 2100115 is about 1449.1773528454. The cubic root of 2100115 is about 128.0602540212.

Adding to 2100115 its reverse (5110012), we get a palindrome (7210127).

The spelling of 2100115 in words is "two million, one hundred thousand, one hundred fifteen".