2125130453 has 4 divisors (see below), whose sum is σ = 2165227308. Its totient is φ = 2085033600.

The previous prime is 2125130431. The next prime is 2125130461. The reversal of 2125130453 is 3540315212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1167042244 + 958088209 = 34162^2 + 30953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125130453 - 2¹⁰ = 2125129429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125130473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20048348 + ... + 20048453.

It is an arithmetic number, because the mean of its divisors is an integer number (541306827).

Almost surely, 2^2125130453 is an apocalyptic number.

It is an amenable number.

2125130453 is a deficient number, since it is larger than the sum of its proper divisors (40096855).

2125130453 is an equidigital number, since it uses as much as digits as its factorization.

2125130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40096854.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2125130453 is about 46099.1372261998. The cubic root of 2125130453 is about 1285.6671031357.

Adding to 2125130453 its reverse (3540315212), we get a palindrome (5665445665).

The spelling of 2125130453 in words is "two billion, one hundred twenty-five million, one hundred thirty thousand, four hundred fifty-three".