1012042556 has 24 divisors (see below), whose sum is σ = 2024772960. Its totient is φ = 433585152.

The previous prime is 1012042547. The next prime is 1012042621. The reversal of 1012042556 is 6552402101.

1012042556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133196 + ... + 140588.

It is an arithmetic number, because the mean of its divisors is an integer number (84365540).

Almost surely, 2^1012042556 is an apocalyptic number.

It is an amenable number.

1012042556 is an abundant number, since it is smaller than the sum of its proper divisors (1012730404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012042556 is a wasteful number, since it uses less digits than its factorization.

1012042556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293 (or 12291 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1012042556 is about 31812.6163023414. The cubic root of 1012042556 is about 1003.9981785970.

Adding to 1012042556 its reverse (6552402101), we get a palindrome (7564444657).

The spelling of 1012042556 in words is "one billion, twelve million, forty-two thousand, five hundred fifty-six".