1142656878 has 16 divisors (see below), whose sum is σ = 2493069696. Its totient is φ = 346259640.

The previous prime is 1142656877. The next prime is 1142656883. The reversal of 1142656878 is 8786562411.

1142656878 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142656877) 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, 8656426 + ... + 8656557.

It is an arithmetic number, because the mean of its divisors is an integer number (155816856).

Almost surely, 2^1142656878 is an apocalyptic number.

1142656878 is an abundant number, since it is smaller than the sum of its proper divisors (1350412818).

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

1142656878 is a wasteful number, since it uses less digits than its factorization.

1142656878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17312999.

The product of its digits is 645120, while the sum is 48.

The square root of 1142656878 is about 33803.2081021905. The cubic root of 1142656878 is about 1045.4548443874.

The spelling of 1142656878 in words is "one billion, one hundred forty-two million, six hundred fifty-six thousand, eight hundred seventy-eight".