1264125009 has 8 divisors (see below), whose sum is σ = 1926285760. Its totient is φ = 722357136.

The previous prime is 1264125007. The next prime is 1264125041. The reversal of 1264125009 is 9005214621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1264125009 - 2¹ = 1264125007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264125007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30098194 + ... + 30098235.

It is an arithmetic number, because the mean of its divisors is an integer number (240785720).

Almost surely, 2^1264125009 is an apocalyptic number.

It is an amenable number.

1264125009 is a deficient number, since it is larger than the sum of its proper divisors (662160751).

1264125009 is an equidigital number, since it uses as much as digits as its factorization.

1264125009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60196439.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1264125009 is about 35554.5357022139. The cubic root of 1264125009 is about 1081.2596781563.

The spelling of 1264125009 in words is "one billion, two hundred sixty-four million, one hundred twenty-five thousand, nine".