2125501133 has 4 divisors (see below), whose sum is σ = 2429144160. Its totient is φ = 1821858108.

The previous prime is 2125501123. The next prime is 2125501171. The reversal of 2125501133 is 3311055212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2125501133 - 2⁴ = 2125501117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2125501099 and 2125501108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125501123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 151821503 + ... + 151821516.

It is an arithmetic number, because the mean of its divisors is an integer number (607286040).

Almost surely, 2^2125501133 is an apocalyptic number.

It is an amenable number.

2125501133 is a deficient number, since it is larger than the sum of its proper divisors (303643027).

2125501133 is an equidigital number, since it uses as much as digits as its factorization.

2125501133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303643026.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2125501133 is about 46103.1575165953. The cubic root of 2125501133 is about 1285.7418504490.

Adding to 2125501133 its reverse (3311055212), we get a palindrome (5436556345).

The spelling of 2125501133 in words is "two billion, one hundred twenty-five million, five hundred one thousand, one hundred thirty-three".