11878142 has 4 divisors (see below), whose sum is σ = 17817216. Its totient is φ = 5939070.

The previous prime is 11878133. The next prime is 11878171. The reversal of 11878142 is 24187811.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 11878099 and 11878108.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2969534 + ... + 2969537.

It is an arithmetic number, because the mean of its divisors is an integer number (4454304).

Almost surely, 2^11878142 is an apocalyptic number.

11878142 is a deficient number, since it is larger than the sum of its proper divisors (5939074).

11878142 is an equidigital number, since it uses as much as digits as its factorization.

11878142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939073.

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

The square root of 11878142 is about 3446.4680471462. The cubic root of 11878142 is about 228.1652515951.

The spelling of 11878142 in words is "eleven million, eight hundred seventy-eight thousand, one hundred forty-two".