147773172257 has 2 divisors, whose sum is σ = 147773172258. Its totient is φ = 147773172256.

The previous prime is 147773172247. The next prime is 147773172311. The reversal of 147773172257 is 752271377741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131485286881 + 16287885376 = 362609^2 + 127624^2 .

It is a cyclic number.

It is not a de Polignac number, because 147773172257 - 2¹² = 147773168161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147773172199 and 147773172208.

It is not a weakly prime, because it can be changed into another prime (147773172227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73886586128 + 73886586129.

It is an arithmetic number, because the mean of its divisors is an integer number (73886586129).

Almost surely, 2^147773172257 is an apocalyptic number.

It is an amenable number.

147773172257 is a deficient number, since it is larger than the sum of its proper divisors (1).

147773172257 is an equidigital number, since it uses as much as digits as its factorization.

147773172257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4033680, while the sum is 53.

The spelling of 147773172257 in words is "one hundred forty-seven billion, seven hundred seventy-three million, one hundred seventy-two thousand, two hundred fifty-seven".