142144133 has 4 divisors (see below), whose sum is σ = 142301760. Its totient is φ = 141986508.

The previous prime is 142144129. The next prime is 142144141. The reversal of 142144133 is 331441241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142144133 - 2² = 142144129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142144099 and 142144108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142144103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77453 + ... + 79266.

It is an arithmetic number, because the mean of its divisors is an integer number (35575440).

Almost surely, 2^142144133 is an apocalyptic number.

It is an amenable number.

142144133 is a deficient number, since it is larger than the sum of its proper divisors (157627).

142144133 is an equidigital number, since it uses as much as digits as its factorization.

142144133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157626.

The product of its digits is 1152, while the sum is 23.

The square root of 142144133 is about 11922.4214402948. The cubic root of 142144133 is about 521.8868006128.

Adding to 142144133 its reverse (331441241), we get a palindrome (473585374).

It can be divided in two parts, 1421 and 44133, that added together give a palindrome (45554).

The spelling of 142144133 in words is "one hundred forty-two million, one hundred forty-four thousand, one hundred thirty-three".