2105854 has 8 divisors (see below), whose sum is σ = 3173040. Its totient is φ = 1048176.

The previous prime is 2105843. The next prime is 2105863. The reversal of 2105854 is 4585012.

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

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1794 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (396630).

2^2105854 is an apocalyptic number.

2105854 is a deficient number, since it is larger than the sum of its proper divisors (1067186).

2105854 is a wasteful number, since it uses less digits than its factorization.

2105854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2105854 is about 1451.1560908462. The cubic root of 2105854 is about 128.1767983304.

It can be divided in two parts, 21058 and 54, that added together give a palindrome (21112).

The spelling of 2105854 in words is "two million, one hundred five thousand, eight hundred fifty-four".