147320447 has 2 divisors, whose sum is σ = 147320448. Its totient is φ = 147320446.

The previous prime is 147320431. The next prime is 147320449. The reversal of 147320447 is 744023741.

It is a strong prime.

It is an emirp because it is prime and its reverse (744023741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147320447 - 2⁴ = 147320431 is a prime.

Together with 147320449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147320449) 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, 73660223 + 73660224.

It is an arithmetic number, because the mean of its divisors is an integer number (73660224).

Almost surely, 2^147320447 is an apocalyptic number.

147320447 is a deficient number, since it is larger than the sum of its proper divisors (1).

147320447 is an equidigital number, since it uses as much as digits as its factorization.

147320447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 147320447 is about 12137.5634704829. The cubic root of 147320447 is about 528.1464228416.

The spelling of 147320447 in words is "one hundred forty-seven million, three hundred twenty thousand, four hundred forty-seven".