2101554804 has 48 divisors (see below), whose sum is σ = 5225730048. Its totient is φ = 655800288.

The previous prime is 2101554797. The next prime is 2101554811. The reversal of 2101554804 is 4084551012.

It is an interprime number because it is at equal distance from previous prime (2101554797) and next prime (2101554811).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68032 + ... + 93975.

It is an arithmetic number, because the mean of its divisors is an integer number (108869376).

Almost surely, 2^2101554804 is an apocalyptic number.

It is an amenable number.

2101554804 is an abundant number, since it is smaller than the sum of its proper divisors (3124175244).

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

2101554804 is a wasteful number, since it uses less digits than its factorization.

2101554804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162084 (or 162082 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 2101554804 is about 45842.7181131311. The cubic root of 2101554804 is about 1280.8951266431.

The spelling of 2101554804 in words is "two billion, one hundred one million, five hundred fifty-four thousand, eight hundred four".