147845497 has 2 divisors, whose sum is σ = 147845498. Its totient is φ = 147845496.

The previous prime is 147845443. The next prime is 147845521. The reversal of 147845497 is 794548741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139688761 + 8156736 = 11819^2 + 2856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147845497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147845497.

It is not a weakly prime, because it can be changed into another prime (147845437) 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, 73922748 + 73922749.

It is an arithmetic number, because the mean of its divisors is an integer number (73922749).

Almost surely, 2^147845497 is an apocalyptic number.

It is an amenable number.

147845497 is a deficient number, since it is larger than the sum of its proper divisors (1).

147845497 is an equidigital number, since it uses as much as digits as its factorization.

147845497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 147845497 is about 12159.1733682845. The cubic root of 147845497 is about 528.7731167809.

The spelling of 147845497 in words is "one hundred forty-seven million, eight hundred forty-five thousand, four hundred ninety-seven".