385060261 has 2 divisors, whose sum is σ = 385060262. Its totient is φ = 385060260.

The previous prime is 385060259. The next prime is 385060303. The reversal of 385060261 is 162060583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210424036 + 174636225 = 14506^2 + 13215^2 .

It is an emirp because it is prime and its reverse (162060583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385060261 - 2¹ = 385060259 is a prime.

Together with 385060259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385064261) 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, 192530130 + 192530131.

It is an arithmetic number, because the mean of its divisors is an integer number (192530131).

Almost surely, 2^385060261 is an apocalyptic number.

It is an amenable number.

385060261 is a deficient number, since it is larger than the sum of its proper divisors (1).

385060261 is an equidigital number, since it uses as much as digits as its factorization.

385060261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 385060261 is about 19622.9524027349. The cubic root of 385060261 is about 727.5165883882.

The spelling of 385060261 in words is "three hundred eighty-five million, sixty thousand, two hundred sixty-one".