11142878 has 8 divisors (see below), whose sum is σ = 16731840. Its totient is φ = 5565600.

The previous prime is 11142877. The next prime is 11142881. The reversal of 11142878 is 87824111.

11142878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (2091480).

Almost surely, 2^11142878 is an apocalyptic number.

11142878 is a deficient number, since it is larger than the sum of its proper divisors (5588962).

11142878 is a wasteful number, since it uses less digits than its factorization.

11142878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842.

The product of its digits is 3584, while the sum is 32.

The square root of 11142878 is about 3338.0949656953. The cubic root of 11142878 is about 223.3567723723.

Adding to 11142878 its reverse (87824111), we get a palindrome (98966989).

The spelling of 11142878 in words is "eleven million, one hundred forty-two thousand, eight hundred seventy-eight".