385475539 has 2 divisors, whose sum is σ = 385475540. Its totient is φ = 385475538.

The previous prime is 385475513. The next prime is 385475593. The reversal of 385475539 is 935574583.

Together with next prime (385475593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385475539 - 2⁷ = 385475411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385475492 and 385475501.

It is not a weakly prime, because it can be changed into another prime (385475039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192737769 + 192737770.

It is an arithmetic number, because the mean of its divisors is an integer number (192737770).

Almost surely, 2^385475539 is an apocalyptic number.

385475539 is a deficient number, since it is larger than the sum of its proper divisors (1).

385475539 is an equidigital number, since it uses as much as digits as its factorization.

385475539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 49.

The square root of 385475539 is about 19633.5309865546. The cubic root of 385475539 is about 727.7780306603.

The spelling of 385475539 in words is "three hundred eighty-five million, four hundred seventy-five thousand, five hundred thirty-nine".