2105355107 has 4 divisors (see below), whose sum is σ = 2118271560. Its totient is φ = 2092438656.

The previous prime is 2105355067. The next prime is 2105355143. The reversal of 2105355107 is 7015535012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2105355107 - 2³⁰ = 1031613283 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 2105355107.

It is not an unprimeable number, because it can be changed into a prime (2105555107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6457982 + ... + 6458307.

It is an arithmetic number, because the mean of its divisors is an integer number (529567890).

Almost surely, 2^2105355107 is an apocalyptic number.

2105355107 is a deficient number, since it is larger than the sum of its proper divisors (12916453).

2105355107 is a wasteful number, since it uses less digits than its factorization.

2105355107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916452.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 2105355107 is about 45884.1487553164. The cubic root of 2105355107 is about 1281.6667550804. Note that the first 3 decimals are identical.

The spelling of 2105355107 in words is "two billion, one hundred five million, three hundred fifty-five thousand, one hundred seven".