147320291 has 2 divisors, whose sum is σ = 147320292. Its totient is φ = 147320290.

The previous prime is 147320263. The next prime is 147320293. The reversal of 147320291 is 192023741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147320291 - 2²⁶ = 80211427 is a prime.

Together with 147320293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147320293) 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, 73660145 + 73660146.

It is an arithmetic number, because the mean of its divisors is an integer number (73660146).

Almost surely, 2^147320291 is an apocalyptic number.

147320291 is a deficient number, since it is larger than the sum of its proper divisors (1).

147320291 is an equidigital number, since it uses as much as digits as its factorization.

147320291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 147320291 is about 12137.5570441502. The cubic root of 147320291 is about 528.1462364207.

The spelling of 147320291 in words is "one hundred forty-seven million, three hundred twenty thousand, two hundred ninety-one".