2143875204 has 27 divisors (see below), whose sum is σ = 5419942437. Its totient is φ = 714532464.

The previous prime is 2143875197. The next prime is 2143875247. The reversal of 2143875204 is 4025783412.

It is a happy number.

The square root of 2143875204 is 46302.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1051704900 + 1092170304 = 32430^2 + 33048^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 273954 + ... + 281670.

Almost surely, 2^2143875204 is an apocalyptic number.

2143875204 is the 46302-nd square number.

It is an amenable number.

2143875204 is an abundant number, since it is smaller than the sum of its proper divisors (3276067233).

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

2143875204 is an frugal number, since it uses more digits than its factorization.

2143875204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15444 (or 7722 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The cubic root of 2143875204 is about 1289.4361263745.

Multiplying 2143875204 by its sum of digits (36), we get a square (77179507344 = 277812²).

2143875204 divided by its sum of digits (36) gives a square (59552089 = 7717²).

The spelling of 2143875204 in words is "two billion, one hundred forty-three million, eight hundred seventy-five thousand, two hundred four".