1130531425 has 6 divisors (see below), whose sum is σ = 1401858998. Its totient is φ = 904425120.

The previous prime is 1130531371. The next prime is 1130531449. The reversal of 1130531425 is 5241350311.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 207100881 + 923430544 = 14391^2 + 30388^2 .

It is not a de Polignac number, because 1130531425 - 2²⁹ = 593660513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 45221257 = 1130531425 / (1 + 1 + 3 + 0 + 5 + 3 + 1 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1130531425.

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, 22610604 + ... + 22610653.

Almost surely, 2^1130531425 is an apocalyptic number.

It is an amenable number.

1130531425 is a deficient number, since it is larger than the sum of its proper divisors (271327573).

1130531425 is an equidigital number, since it uses as much as digits as its factorization.

1130531425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45221267 (or 45221262 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1130531425 is about 33623.3761689691. The cubic root of 1130531425 is about 1041.7436925086.

Adding to 1130531425 its reverse (5241350311), we get a palindrome (6371881736).

The spelling of 1130531425 in words is "one billion, one hundred thirty million, five hundred thirty-one thousand, four hundred twenty-five".