2101554834 has 32 divisors (see below), whose sum is σ = 4285975680. Its totient is φ = 686729472.

The previous prime is 2101554817. The next prime is 2101554839. The reversal of 2101554834 is 4384551012.

2101554834 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2101554795 and 2101554804.

It is not an unprimeable number, because it can be changed into a prime (2101554839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563227 + ... + 566945.

It is an arithmetic number, because the mean of its divisors is an integer number (133936740).

Almost surely, 2^2101554834 is an apocalyptic number.

2101554834 is an abundant number, since it is smaller than the sum of its proper divisors (2184420846).

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

2101554834 is a wasteful number, since it uses less digits than its factorization.

2101554834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2101554834 is about 45842.7184403368. The cubic root of 2101554834 is about 1280.8951327381.

The spelling of 2101554834 in words is "two billion, one hundred one million, five hundred fifty-four thousand, eight hundred thirty-four".