2105456124 has 12 divisors (see below), whose sum is σ = 4912730984. Its totient is φ = 701818704.

The previous prime is 2105456113. The next prime is 2105456131. The reversal of 2105456124 is 4216545012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2105456091 and 2105456100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87727327 + ... + 87727350.

Almost surely, 2^2105456124 is an apocalyptic number.

It is an amenable number.

2105456124 is an abundant number, since it is smaller than the sum of its proper divisors (2807274860).

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

2105456124 is a wasteful number, since it uses less digits than its factorization.

2105456124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175454684 (or 175454682 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2105456124 is about 45885.2495253104. The cubic root of 2105456124 is about 1281.6872532946.

The spelling of 2105456124 in words is "two billion, one hundred five million, four hundred fifty-six thousand, one hundred twenty-four".