2100144 has 20 divisors (see below), whose sum is σ = 5425496. Its totient is φ = 700032.

The previous prime is 2100121. The next prime is 2100167. The reversal of 2100144 is 4410012.

It is an interprime number because it is at equal distance from previous prime (2100121) and next prime (2100167).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21829 + ... + 21924.

2^2100144 is an apocalyptic number.

2100144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2100144 is an abundant number, since it is smaller than the sum of its proper divisors (3325352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100144 is a wasteful number, since it uses less digits than its factorization.

2100144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43764 (or 43758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2100144 is about 1449.1873584875. The cubic root of 2100144 is about 128.0608434699.

Adding to 2100144 its reverse (4410012), we get a palindrome (6510156).

The spelling of 2100144 in words is "two million, one hundred thousand, one hundred forty-four".