2143227025 has 27 divisors (see below), whose sum is σ = 2729202769. Its totient is φ = 1669582880.

The previous prime is 2143227017. The next prime is 2143227029. The reversal of 2143227025 is 5207223412.

The square root of 2143227025 is 46295.

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

It can be written as a sum of positive squares in 4 ways, for example, as 494217361 + 1649009664 = 22231^2 + 40608^2 .

It is not a de Polignac number, because 2143227025 - 2³ = 2143227017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143226984 and 2143227002.

It is not an unprimeable number, because it can be changed into a prime (2143227029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10879227 + ... + 10879423.

Almost surely, 2^2143227025 is an apocalyptic number.

2143227025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2143227025 is the 46295-th square number.

2143227025 is the 23148-th centered octagonal number.

It is an amenable number.

2143227025 is a deficient number, since it is larger than the sum of its proper divisors (585975744).

2143227025 is an frugal number, since it uses more digits than its factorization.

2143227025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The cubic root of 2143227025 is about 1289.3061639491.

The spelling of 2143227025 in words is "two billion, one hundred forty-three million, two hundred twenty-seven thousand, twenty-five".