1012256339 has 8 divisors (see below), whose sum is σ = 1072703520. Its totient is φ = 953512000.

The previous prime is 1012256321. The next prime is 1012256341. The reversal of 1012256339 is 9336522101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012256339 - 2⁸ = 1012256083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012256359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424487 + ... + 426864.

It is an arithmetic number, because the mean of its divisors is an integer number (134087940).

Almost surely, 2^1012256339 is an apocalyptic number.

1012256339 is a deficient number, since it is larger than the sum of its proper divisors (60447181).

1012256339 is an equidigital number, since it uses as much as digits as its factorization.

1012256339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851421.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1012256339 is about 31815.9761597849. The cubic root of 1012256339 is about 1004.0688681907.

The spelling of 1012256339 in words is "one billion, twelve million, two hundred fifty-six thousand, three hundred thirty-nine".