1012425409 has 8 divisors (see below), whose sum is σ = 1062970560. Its totient is φ = 962922576.

The previous prime is 1012425383. The next prime is 1012425433. The reversal of 1012425409 is 9045242101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012425409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012425439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258589 + ... + 262474.

It is an arithmetic number, because the mean of its divisors is an integer number (132871320).

Almost surely, 2^1012425409 is an apocalyptic number.

It is an amenable number.

1012425409 is a deficient number, since it is larger than the sum of its proper divisors (50545151).

1012425409 is an equidigital number, since it uses as much as digits as its factorization.

1012425409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521159.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1012425409 is about 31818.6330473199. The cubic root of 1012425409 is about 1004.1247659137.

The spelling of 1012425409 in words is "one billion, twelve million, four hundred twenty-five thousand, four hundred nine".