547157729 has 2 divisors, whose sum is σ = 547157730. Its totient is φ = 547157728.

The previous prime is 547157701. The next prime is 547157753. The reversal of 547157729 is 927751745.

547157729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281467729 + 265690000 = 16777^2 + 16300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-547157729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (547157759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273578864 + 273578865.

It is an arithmetic number, because the mean of its divisors is an integer number (273578865).

Almost surely, 2^547157729 is an apocalyptic number.

It is an amenable number.

547157729 is a deficient number, since it is larger than the sum of its proper divisors (1).

547157729 is an equidigital number, since it uses as much as digits as its factorization.

547157729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617400, while the sum is 47.

The square root of 547157729 is about 23391.4028865308. The cubic root of 547157729 is about 817.9074790294.

The spelling of 547157729 in words is "five hundred forty-seven million, one hundred fifty-seven thousand, seven hundred twenty-nine".