1263110125 has 8 divisors (see below), whose sum is σ = 1576361592. Its totient is φ = 1010488000.

The previous prime is 1263110117. The next prime is 1263110143. The reversal of 1263110125 is 5210113621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46635241 + 1216474884 = 6829^2 + 34878^2 .

It is not a de Polignac number, because 1263110125 - 2³ = 1263110117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1263110096 and 1263110105.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5052316 + ... + 5052565.

It is an arithmetic number, because the mean of its divisors is an integer number (197045199).

Almost surely, 2^1263110125 is an apocalyptic number.

It is an amenable number.

1263110125 is a deficient number, since it is larger than the sum of its proper divisors (313251467).

1263110125 is an equidigital number, since it uses as much as digits as its factorization.

1263110125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104896 (or 10104886 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1263110125 is about 35540.2606208790. The cubic root of 1263110125 is about 1080.9702429251.

Adding to 1263110125 its reverse (5210113621), we get a palindrome (6473223746).

The spelling of 1263110125 in words is "one billion, two hundred sixty-three million, one hundred ten thousand, one hundred twenty-five".