2131550204 has 48 divisors (see below), whose sum is σ = 4494336000. Its totient is φ = 865226880.

The previous prime is 2131550191. The next prime is 2131550209. The reversal of 2131550204 is 4020551312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131550204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131550209) 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, 14672 + ... + 66920.

It is an arithmetic number, because the mean of its divisors is an integer number (93632000).

Almost surely, 2^2131550204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131550204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247168000).

2131550204 is an abundant number, since it is smaller than the sum of its proper divisors (2362785796).

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

2131550204 is a wasteful number, since it uses less digits than its factorization.

2131550204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52338 (or 52336 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2131550204 is about 46168.7145586706. The cubic root of 2131550204 is about 1286.9604144064.

The spelling of 2131550204 in words is "two billion, one hundred thirty-one million, five hundred fifty thousand, two hundred four".