385111 has 4 divisors (see below), whose sum is σ = 405400. Its totient is φ = 364824.

The previous prime is 385109. The next prime is 385127. The reversal of 385111 is 111583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111583 = 241 ⋅463.

It is a cyclic number.

It is not a de Polignac number, because 385111 - 2¹ = 385109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 20269 = 385111 / (3 + 8 + 5 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10116 + ... + 10153.

It is an arithmetic number, because the mean of its divisors is an integer number (101350).

2³⁸⁵¹¹¹ is an apocalyptic number.

385111 is a deficient number, since it is larger than the sum of its proper divisors (20289).

385111 is a wasteful number, since it uses less digits than its factorization.

385111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20288.

The product of its digits is 120, while the sum is 19.

The square root of 385111 is about 620.5731222024. The cubic root of 385111 is about 72.7548541692.

Adding to 385111 its reverse (111583), we get a palindrome (496694).

It can be divided in two parts, 385 and 111, that added together give a triangular number (496 = T₃₁).

The spelling of 385111 in words is "three hundred eighty-five thousand, one hundred eleven".