1144111142 has 8 divisors (see below), whose sum is σ = 1718104176. Its totient is φ = 571409752.

The previous prime is 1144111127. The next prime is 1144111153. The reversal of 1144111142 is 2411114411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320693 + ... + 324240.

It is an arithmetic number, because the mean of its divisors is an integer number (214763022).

Almost surely, 2^1144111142 is an apocalyptic number.

1144111142 is a deficient number, since it is larger than the sum of its proper divisors (573993034).

1144111142 is an equidigital number, since it uses as much as digits as its factorization.

1144111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645822.

The product of its digits is 128, while the sum is 20.

The square root of 1144111142 is about 33824.7120017303. The cubic root of 1144111142 is about 1045.8981745583.

Adding to 1144111142 its reverse (2411114411), we get a palindrome (3555225553).

The spelling of 1144111142 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, one hundred forty-two".