2101565192 has 8 divisors (see below), whose sum is σ = 3940434750. Its totient is φ = 1050782592.

The previous prime is 2101565161. The next prime is 2101565239. The reversal of 2101565192 is 2915651012.

It can be written as a sum of positive squares in only one way, i.e., 1184323396 + 917241796 = 34414^2 + 30286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131347817 + ... + 131347832.

Almost surely, 2^2101565192 is an apocalyptic number.

It is an amenable number.

2101565192 is a deficient number, since it is larger than the sum of its proper divisors (1838869558).

2101565192 is a wasteful number, since it uses less digits than its factorization.

2101565192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262695655 (or 262695651 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 2101565192 is about 45842.8314134282. The cubic root of 2101565192 is about 1280.8972371308.

The spelling of 2101565192 in words is "two billion, one hundred one million, five hundred sixty-five thousand, one hundred ninety-two".