729245941 has 2 divisors, whose sum is σ = 729245942. Its totient is φ = 729245940.

The previous prime is 729245929. The next prime is 729246013. The reversal of 729245941 is 149542927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611523441 + 117722500 = 24729^2 + 10850^2 .

It is an emirp because it is prime and its reverse (149542927) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729245941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729248941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364622970 + 364622971.

It is an arithmetic number, because the mean of its divisors is an integer number (364622971).

Almost surely, 2^729245941 is an apocalyptic number.

It is an amenable number.

729245941 is a deficient number, since it is larger than the sum of its proper divisors (1).

729245941 is an equidigital number, since it uses as much as digits as its factorization.

729245941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 729245941 is about 27004.5540788957. The cubic root of 729245941 is about 900.1011989085.

The spelling of 729245941 in words is "seven hundred twenty-nine million, two hundred forty-five thousand, nine hundred forty-one".