2105144 has 32 divisors (see below), whose sum is σ = 4367520. Its totient is φ = 946176.

The previous prime is 2105141. The next prime is 2105149. The reversal of 2105144 is 4415012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105141) 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, 2792 + ... + 3464.

It is an arithmetic number, because the mean of its divisors is an integer number (136485).

2^2105144 is an apocalyptic number.

It is an amenable number.

2105144 is an abundant number, since it is smaller than the sum of its proper divisors (2262376).

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

2105144 is a wasteful number, since it uses less digits than its factorization.

2105144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2105144 is about 1450.9114376832. The cubic root of 2105144 is about 128.1623915456.

The spelling of 2105144 in words is "two million, one hundred five thousand, one hundred forty-four".