147771995317 has 2 divisors, whose sum is σ = 147771995318. Its totient is φ = 147771995316.

The previous prime is 147771995309. The next prime is 147771995377. The reversal of 147771995317 is 713599177741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129629521681 + 18142473636 = 360041^2 + 134694^2 .

It is an emirp because it is prime and its reverse (713599177741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147771995317 - 2³ = 147771995309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147771995377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73885997658 + 73885997659.

It is an arithmetic number, because the mean of its divisors is an integer number (73885997659).

Almost surely, 2^147771995317 is an apocalyptic number.

It is an amenable number.

147771995317 is a deficient number, since it is larger than the sum of its proper divisors (1).

147771995317 is an equidigital number, since it uses as much as digits as its factorization.

147771995317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11668860, while the sum is 61.

The spelling of 147771995317 in words is "one hundred forty-seven billion, seven hundred seventy-one million, nine hundred ninety-five thousand, three hundred seventeen".