1263312425 has 12 divisors (see below), whose sum is σ = 1593060240. Its totient is φ = 993519120.

The previous prime is 1263312419. The next prime is 1263312433. The reversal of 1263312425 is 5242133621.

It is a happy number.

It is not a de Polignac number, because 1263312425 - 2⁴ = 1263312409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426767 + ... + 429716.

It is an arithmetic number, because the mean of its divisors is an integer number (132755020).

Almost surely, 2^1263312425 is an apocalyptic number.

It is an amenable number.

1263312425 is a deficient number, since it is larger than the sum of its proper divisors (329747815).

1263312425 is an equidigital number, since it uses as much as digits as its factorization.

1263312425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856552 (or 856547 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 1263312425 is about 35543.1065749746. The cubic root of 1263312425 is about 1081.0279493230.

The spelling of 1263312425 in words is "one billion, two hundred sixty-three million, three hundred twelve thousand, four hundred twenty-five".