2105245345 has 32 divisors (see below), whose sum is σ = 2919702528. Its totient is φ = 1427424768.

The previous prime is 2105245279. The next prime is 2105245367. The reversal of 2105245345 is 5435425012.

It is not a de Polignac number, because 2105245345 - 2⁷ = 2105245217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1764069 + ... + 1765261.

It is an arithmetic number, because the mean of its divisors is an integer number (91240704).

Almost surely, 2^2105245345 is an apocalyptic number.

It is an amenable number.

2105245345 is a deficient number, since it is larger than the sum of its proper divisors (814457183).

2105245345 is a wasteful number, since it uses less digits than its factorization.

2105245345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2105245345 is about 45882.9526621816. The cubic root of 2105245345 is about 1281.6444816010.

The spelling of 2105245345 in words is "two billion, one hundred five million, two hundred forty-five thousand, three hundred forty-five".