385282256173 has 2 divisors, whose sum is σ = 385282256174. Its totient is φ = 385282256172.

The previous prime is 385282256171. The next prime is 385282256207. The reversal of 385282256173 is 371652282583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364016742244 + 21265513929 = 603338^2 + 145827^2 .

It is an emirp because it is prime and its reverse (371652282583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385282256173 - 2¹ = 385282256171 is a prime.

Together with 385282256171, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 385282256173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385282256171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192641128086 + 192641128087.

It is an arithmetic number, because the mean of its divisors is an integer number (192641128087).

Almost surely, 2^385282256173 is an apocalyptic number.

It is an amenable number.

385282256173 is a deficient number, since it is larger than the sum of its proper divisors (1).

385282256173 is an equidigital number, since it uses as much as digits as its factorization.

385282256173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 52.

The spelling of 385282256173 in words is "three hundred eighty-five billion, two hundred eighty-two million, two hundred fifty-six thousand, one hundred seventy-three".