731113460729 has 2 divisors, whose sum is σ = 731113460730. Its totient is φ = 731113460728.

The previous prime is 731113460723. The next prime is 731113460741. The reversal of 731113460729 is 927064311137.

731113460729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491047759504 + 240065701225 = 700748^2 + 489965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-731113460729 is a prime.

It is a super-2 number, since 2×731113460729² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 731113460729.

It is not a weakly prime, because it can be changed into another prime (731113460723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365556730364 + 365556730365.

It is an arithmetic number, because the mean of its divisors is an integer number (365556730365).

Almost surely, 2^731113460729 is an apocalyptic number.

It is an amenable number.

731113460729 is a deficient number, since it is larger than the sum of its proper divisors (1).

731113460729 is an equidigital number, since it uses as much as digits as its factorization.

731113460729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 731113460729 in words is "seven hundred thirty-one billion, one hundred thirteen million, four hundred sixty thousand, seven hundred twenty-nine".