147783215171 has 2 divisors, whose sum is σ = 147783215172. Its totient is φ = 147783215170.

The previous prime is 147783215149. The next prime is 147783215189. The reversal of 147783215171 is 171512387741.

It is a strong prime.

It is an emirp because it is prime and its reverse (171512387741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147783215171 is a prime.

It is not a weakly prime, because it can be changed into another prime (147783215131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73891607585 + 73891607586.

It is an arithmetic number, because the mean of its divisors is an integer number (73891607586).

Almost surely, 2^147783215171 is an apocalyptic number.

147783215171 is a deficient number, since it is larger than the sum of its proper divisors (1).

147783215171 is an equidigital number, since it uses as much as digits as its factorization.

147783215171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 47.

The spelling of 147783215171 in words is "one hundred forty-seven billion, seven hundred eighty-three million, two hundred fifteen thousand, one hundred seventy-one".