2101814 has 16 divisors (see below), whose sum is σ = 3704400. Its totient is φ = 881760.

The previous prime is 2101811. The next prime is 2101817. The reversal of 2101814 is 4181012.

It is an interprime number because it is at equal distance from previous prime (2101811) and next prime (2101817).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2101792 and 2101801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3389 + ... + 3960.

It is an arithmetic number, because the mean of its divisors is an integer number (231525).

2^2101814 is an apocalyptic number.

2101814 is a deficient number, since it is larger than the sum of its proper divisors (1602586).

2101814 is a wasteful number, since it uses less digits than its factorization.

2101814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2101814 is about 1449.7634289773. The cubic root of 2101814 is about 128.0947784362.

Adding to 2101814 its reverse (4181012), we get a palindrome (6282826).

The spelling of 2101814 in words is "two million, one hundred one thousand, eight hundred fourteen".