2105015245 has 8 divisors (see below), whose sum is σ = 2526675480. Its totient is φ = 1683574080.

The previous prime is 2105015239. The next prime is 2105015261. The reversal of 2105015245 is 5425105012.

It can be written as a sum of positive squares in 4 ways, for example, as 566963721 + 1538051524 = 23811^2 + 39218^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2105015245 is a prime.

It is a congruent number.

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, 32826 + ... + 72715.

It is an arithmetic number, because the mean of its divisors is an integer number (315834435).

Almost surely, 2^2105015245 is an apocalyptic number.

It is an amenable number.

2105015245 is a deficient number, since it is larger than the sum of its proper divisors (421660235).

2105015245 is a wasteful number, since it uses less digits than its factorization.

2105015245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109535.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2105015245 is about 45880.4451264370. The cubic root of 2105015245 is about 1281.5977859920.

The spelling of 2105015245 in words is "two billion, one hundred five million, fifteen thousand, two hundred forty-five".