2105132515 has 8 divisors (see below), whose sum is σ = 2526879888. Its totient is φ = 1683625440.

The previous prime is 2105132503. The next prime is 2105132539. The reversal of 2105132515 is 5152315012.

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

It is not a de Polignac number, because 2105132515 - 2¹⁵ = 2105099747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105132515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40201 + ... + 76330.

It is an arithmetic number, because the mean of its divisors is an integer number (315859986).

Almost surely, 2^2105132515 is an apocalyptic number.

2105132515 is a deficient number, since it is larger than the sum of its proper divisors (421747373).

2105132515 is a wasteful number, since it uses less digits than its factorization.

2105132515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120149.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2105132515 is about 45881.7231040858. The cubic root of 2105132515 is about 1281.6215847399.

Adding to 2105132515 its reverse (5152315012), we get a palindrome (7257447527).

The spelling of 2105132515 in words is "two billion, one hundred five million, one hundred thirty-two thousand, five hundred fifteen".