147322729 has 2 divisors, whose sum is σ = 147322730. Its totient is φ = 147322728.

The previous prime is 147322723. The next prime is 147322739. The reversal of 147322729 is 927223741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129345129 + 17977600 = 11373^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 147322729 - 2²³ = 138934121 is a prime.

It is not a weakly prime, because it can be changed into another prime (147322723) 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 as a sum of consecutive naturals, namely, 73661364 + 73661365.

It is an arithmetic number, because the mean of its divisors is an integer number (73661365).

Almost surely, 2^147322729 is an apocalyptic number.

It is an amenable number.

147322729 is a deficient number, since it is larger than the sum of its proper divisors (1).

147322729 is an equidigital number, since it uses as much as digits as its factorization.

147322729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 147322729 is about 12137.6574758064. The cubic root of 147322729 is about 528.1491498311.

The spelling of 147322729 in words is "one hundred forty-seven million, three hundred twenty-two thousand, seven hundred twenty-nine".