2125133205 has 16 divisors (see below), whose sum is σ = 3661768320. Its totient is φ = 1046219328.

The previous prime is 2125133191. The next prime is 2125133233. The reversal of 2125133205 is 5023315212.

It is a happy number.

It is not a de Polignac number, because 2125133205 - 2⁷ = 2125133077 is a prime.

It is a super-2 number, since 2×2125133205² = 9032382277987144050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5448865 + ... + 5449254.

It is an arithmetic number, because the mean of its divisors is an integer number (228860520).

Almost surely, 2^2125133205 is an apocalyptic number.

It is an amenable number.

2125133205 is a deficient number, since it is larger than the sum of its proper divisors (1536635115).

2125133205 is a wasteful number, since it uses less digits than its factorization.

2125133205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10898140.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2125133205 is about 46099.1670749049. The cubic root of 2125133205 is about 1285.6676581062.

Adding to 2125133205 its reverse (5023315212), we get a palindrome (7148448417).

The spelling of 2125133205 in words is "two billion, one hundred twenty-five million, one hundred thirty-three thousand, two hundred five".