1125013025 has 6 divisors (see below), whose sum is σ = 1395016182. Its totient is φ = 900010400.

The previous prime is 1125012989. The next prime is 1125013039. The reversal of 1125013025 is 5203105211.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 83466496 + 1041546529 = 9136^2 + 32273^2 .

It is not a de Polignac number, because 1125013025 - 2⁸ = 1125012769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125012988 and 1125013006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22500236 + ... + 22500285.

It is an arithmetic number, because the mean of its divisors is an integer number (232502697).

Almost surely, 2^1125013025 is an apocalyptic number.

It is an amenable number.

1125013025 is a deficient number, since it is larger than the sum of its proper divisors (270003157).

1125013025 is an equidigital number, since it uses as much as digits as its factorization.

1125013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45000531 (or 45000526 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1125013025 is about 33541.2138271709. The cubic root of 1125013025 is about 1040.0459253018.

Adding to 1125013025 its reverse (5203105211), we get a palindrome (6328118236).

The spelling of 1125013025 in words is "one billion, one hundred twenty-five million, thirteen thousand, twenty-five".