2111385 has 8 divisors (see below), whose sum is σ = 3378240. Its totient is φ = 1126064.

The previous prime is 2111363. The next prime is 2111387. The reversal of 2111385 is 5831112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111385 - 2⁵ = 2111353 is a prime.

2111385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2111387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70365 + ... + 70394.

It is an arithmetic number, because the mean of its divisors is an integer number (422280).

2^2111385 is an apocalyptic number.

It is an amenable number.

2111385 is a deficient number, since it is larger than the sum of its proper divisors (1266855).

2111385 is a wasteful number, since it uses less digits than its factorization.

2111385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140767.

The product of its digits is 240, while the sum is 21.

The square root of 2111385 is about 1453.0605630874. The cubic root of 2111385 is about 128.2889184958.

Adding to 2111385 its reverse (5831112), we get a palindrome (7942497).

It can be divided in two parts, 211 and 1385, that added together give a triangular number (1596 = T₅₆).

The spelling of 2111385 in words is "two million, one hundred eleven thousand, three hundred eighty-five".