2115250205 has 4 divisors (see below), whose sum is σ = 2538300252. Its totient is φ = 1692200160.

The previous prime is 2115250199. The next prime is 2115250217. The reversal of 2115250205 is 5020525112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 386436964 + 1728813241 = 19658^2 + 41579^2 .

It is not a de Polignac number, because 2115250205 - 2¹⁸ = 2114988061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 211525016 + ... + 211525025.

It is an arithmetic number, because the mean of its divisors is an integer number (634575063).

Almost surely, 2^2115250205 is an apocalyptic number.

It is an amenable number.

2115250205 is a deficient number, since it is larger than the sum of its proper divisors (423050047).

2115250205 is an equidigital number, since it uses as much as digits as its factorization.

2115250205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423050046.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2115250205 is about 45991.8493322458. The cubic root of 2115250205 is about 1283.6715477088.

Adding to 2115250205 its reverse (5020525112), we get a palindrome (7135775317).

The spelling of 2115250205 in words is "two billion, one hundred fifteen million, two hundred fifty thousand, two hundred five".