1264117125 has 32 divisors (see below), whose sum is σ = 2154821760. Its totient is φ = 657744000.

The previous prime is 1264117121. The next prime is 1264117171. The reversal of 1264117125 is 5217114621.

It is not a de Polignac number, because 1264117125 - 2² = 1264117121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1264117092 and 1264117101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264117121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25735 + ... + 56484.

It is an arithmetic number, because the mean of its divisors is an integer number (67338180).

Almost surely, 2^1264117125 is an apocalyptic number.

1264117125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264117125 is a deficient number, since it is larger than the sum of its proper divisors (890704635).

1264117125 is an equidigital number, since it uses as much as digits as its factorization.

1264117125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82278 (or 82268 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 1264117125 is about 35554.4248301108. The cubic root of 1264117125 is about 1081.2574303119.

The spelling of 1264117125 in words is "one billion, two hundred sixty-four million, one hundred seventeen thousand, one hundred twenty-five".