2111853 has 8 divisors (see below), whose sum is σ = 2826208. Its totient is φ = 1402704.

The previous prime is 2111843. The next prime is 2111861. The reversal of 2111853 is 3581112.

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

It is not a de Polignac number, because 2111853 - 2⁶ = 2111789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111803) 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, 226 + ... + 2067.

It is an arithmetic number, because the mean of its divisors is an integer number (353276).

2^2111853 is an apocalyptic number.

It is an amenable number.

2111853 is a deficient number, since it is larger than the sum of its proper divisors (714355).

2111853 is a wasteful number, since it uses less digits than its factorization.

2111853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603.

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

The square root of 2111853 is about 1453.2215935638. The cubic root of 2111853 is about 128.2983964417.

Adding to 2111853 its reverse (3581112), we get a palindrome (5692965).

The spelling of 2111853 in words is "two million, one hundred eleven thousand, eight hundred fifty-three".