2105727172 has 6 divisors (see below), whose sum is σ = 3685022558. Its totient is φ = 1052863584.

The previous prime is 2105727167. The next prime is 2105727271. The reversal of 2105727172 is 2717275012.

It can be written as a sum of positive squares in only one way, i.e., 1960187076 + 145540096 = 44274^2 + 12064^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263215893 + ... + 263215900.

Almost surely, 2^2105727172 is an apocalyptic number.

It is an amenable number.

2105727172 is a deficient number, since it is larger than the sum of its proper divisors (1579295386).

2105727172 is a wasteful number, since it uses less digits than its factorization.

2105727172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526431797 (or 526431795 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 2105727172 is about 45888.2029720058. The cubic root of 2105727172 is about 1281.7422506981.

The spelling of 2105727172 in words is "two billion, one hundred five million, seven hundred twenty-seven thousand, one hundred seventy-two".