1264163425 has 12 divisors (see below), whose sum is σ = 1791500416. Its totient is φ = 866854800.

The previous prime is 1264163413. The next prime is 1264163491. The reversal of 1264163425 is 5243614621.

It is not a de Polignac number, because 1264163425 - 2²⁵ = 1230608993 is a prime.

It is a Duffinian number.

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, 3611721 + ... + 3612070.

Almost surely, 2^1264163425 is an apocalyptic number.

It is an amenable number.

1264163425 is a deficient number, since it is larger than the sum of its proper divisors (527336991).

1264163425 is an equidigital number, since it uses as much as digits as its factorization.

1264163425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223808 (or 7223803 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 1264163425 is about 35555.0759386054. The cubic root of 1264163425 is about 1081.2706309895.

The spelling of 1264163425 in words is "one billion, two hundred sixty-four million, one hundred sixty-three thousand, four hundred twenty-five".