1144142 has 8 divisors (see below), whose sum is σ = 1806600. Its totient is φ = 541944.

The previous prime is 1144141. The next prime is 1144147. The reversal of 1144142 is 2414411.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1144142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15017 + ... + 15092.

It is an arithmetic number, because the mean of its divisors is an integer number (225825).

2^1144142 is an apocalyptic number.

1144142 is a deficient number, since it is larger than the sum of its proper divisors (662458).

1144142 is a wasteful number, since it uses less digits than its factorization.

1144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30130.

The product of its digits is 128, while the sum is 17.

The square root of 1144142 is about 1069.6457357462. The cubic root of 1144142 is about 104.5907577501.

Adding to 1144142 its reverse (2414411), we get a palindrome (3558553).

The spelling of 1144142 in words is "one million, one hundred forty-four thousand, one hundred forty-two".