10561729 has 2 divisors, whose sum is σ = 10561730. Its totient is φ = 10561728.

The previous prime is 10561697. The next prime is 10561753. The reversal of 10561729 is 92716501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7551504 + 3010225 = 2748^2 + 1735^2 .

It is an emirp because it is prime and its reverse (92716501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10561729 - 2⁵ = 10561697 is a prime.

It is a super-2 number, since 2×10561729² = 223100238938882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10561729.

It is not a weakly prime, because it can be changed into another prime (10561799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280864 + 5280865.

It is an arithmetic number, because the mean of its divisors is an integer number (5280865).

Almost surely, 2^10561729 is an apocalyptic number.

It is an amenable number.

10561729 is a deficient number, since it is larger than the sum of its proper divisors (1).

10561729 is an equidigital number, since it uses as much as digits as its factorization.

10561729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 10561729 is about 3249.8813824508. The cubic root of 10561729 is about 219.4042352198.

The spelling of 10561729 in words is "ten million, five hundred sixty-one thousand, seven hundred twenty-nine".