2105315715 has 16 divisors (see below), whose sum is σ = 3387980448. Its totient is φ = 1116343296.

The previous prime is 2105315711. The next prime is 2105315749. The reversal of 2105315715 is 5175135012.

It is not a de Polignac number, because 2105315715 - 2² = 2105315711 is a prime.

It is a super-2 number, since 2×2105315715² = 8864708519651922450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2105315711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403054 + ... + 408243.

It is an arithmetic number, because the mean of its divisors is an integer number (211748778).

Almost surely, 2^2105315715 is an apocalyptic number.

2105315715 is a deficient number, since it is larger than the sum of its proper divisors (1282664733).

2105315715 is a wasteful number, since it uses less digits than its factorization.

2105315715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811478.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 2105315715 is about 45883.7194983144. The cubic root of 2105315715 is about 1281.6587615387.

The spelling of 2105315715 in words is "two billion, one hundred five million, three hundred fifteen thousand, seven hundred fifteen".