2105447067 has 16 divisors (see below), whose sum is σ = 3226740000. Its totient is φ = 1355229792.

The previous prime is 2105447063. The next prime is 2105447077. The reversal of 2105447067 is 7607445012.

It is not a de Polignac number, because 2105447067 - 2² = 2105447063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105447063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1343692 + ... + 1345257.

It is an arithmetic number, because the mean of its divisors is an integer number (201671250).

Almost surely, 2^2105447067 is an apocalyptic number.

2105447067 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2105447067 is a deficient number, since it is larger than the sum of its proper divisors (1121292933).

2105447067 is a wasteful number, since it uses less digits than its factorization.

2105447067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688987 (or 2688981 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 2105447067 is about 45885.1508333578. The cubic root of 2105447067 is about 1281.6854154889.

It can be divided in two parts, 21054 and 47067, that added together give a square (68121 = 261²).

The spelling of 2105447067 in words is "two billion, one hundred five million, four hundred forty-seven thousand, sixty-seven".