1142068856 has 8 divisors (see below), whose sum is σ = 2141379120. Its totient is φ = 571034424.

The previous prime is 1142068843. The next prime is 1142068859. The reversal of 1142068856 is 6588602411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142068859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71379296 + ... + 71379311.

It is an arithmetic number, because the mean of its divisors is an integer number (267672390).

Almost surely, 2^1142068856 is an apocalyptic number.

It is an amenable number.

1142068856 is a deficient number, since it is larger than the sum of its proper divisors (999310264).

1142068856 is a wasteful number, since it uses less digits than its factorization.

1142068856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142758613 (or 142758609 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1142068856 is about 33794.5092581620. The cubic root of 1142068856 is about 1045.2754799772.

The spelling of 1142068856 in words is "one billion, one hundred forty-two million, sixty-eight thousand, eight hundred fifty-six".