2011142 has 8 divisors (see below), whose sum is σ = 3447696. Its totient is φ = 861912.

The previous prime is 2011129. The next prime is 2011147. The reversal of 2011142 is 2411102.

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

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011147) 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, 71813 + ... + 71840.

It is an arithmetic number, because the mean of its divisors is an integer number (430962).

2^2011142 is an apocalyptic number.

2011142 is a deficient number, since it is larger than the sum of its proper divisors (1436554).

2011142 is a wasteful number, since it uses less digits than its factorization.

2011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143662.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2011142 is about 1418.1473830318. The cubic root of 2011142 is about 126.2256391908.

Adding to 2011142 its reverse (2411102), we get a palindrome (4422244).

The spelling of 2011142 in words is "two million, eleven thousand, one hundred forty-two".