2712100561 has 8 divisors (see below), whose sum is σ = 2821127400. Its totient is φ = 2604107520.

The previous prime is 2712100511. The next prime is 2712100579. The reversal of 2712100561 is 1650012172.

It can be written as a sum of positive squares in 4 ways, for example, as 43758225 + 2668342336 = 6615^2 + 51656^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2712100561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2712100511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253096 + ... + 263593.

It is an arithmetic number, because the mean of its divisors is an integer number (352640925).

Almost surely, 2^2712100561 is an apocalyptic number.

It is an amenable number.

2712100561 is a deficient number, since it is larger than the sum of its proper divisors (109026839).

2712100561 is a wasteful number, since it uses less digits than its factorization.

2712100561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516899.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 2712100561 is about 52077.8317617007. The cubic root of 2712100561 is about 1394.5537660533.

The spelling of 2712100561 in words is "two billion, seven hundred twelve million, one hundred thousand, five hundred sixty-one".