147170713681 has 2 divisors, whose sum is σ = 147170713682. Its totient is φ = 147170713680.

The previous prime is 147170713667. The next prime is 147170713793. The reversal of 147170713681 is 186317071741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89750573056 + 57420140625 = 299584^2 + 239625^2 .

It is a cyclic number.

It is not a de Polignac number, because 147170713681 - 2⁹ = 147170713169 is a prime.

It is a super-2 number, since 2×147170713681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147170713621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73585356840 + 73585356841.

It is an arithmetic number, because the mean of its divisors is an integer number (73585356841).

Almost surely, 2^147170713681 is an apocalyptic number.

It is an amenable number.

147170713681 is a deficient number, since it is larger than the sum of its proper divisors (1).

147170713681 is an equidigital number, since it uses as much as digits as its factorization.

147170713681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 46.

The spelling of 147170713681 in words is "one hundred forty-seven billion, one hundred seventy million, seven hundred thirteen thousand, six hundred eighty-one".