142441 has 4 divisors (see below), whose sum is σ = 153412. Its totient is φ = 131472.

The previous prime is 142433. The next prime is 142453. The reversal of 142441 is 144241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52441 + 90000 = 229^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 142441 - 2³ = 142433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142421) 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, 5466 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (38353).

2¹⁴²⁴⁴¹ is an apocalyptic number.

It is an amenable number.

142441 is a deficient number, since it is larger than the sum of its proper divisors (10971).

142441 is a wasteful number, since it uses less digits than its factorization.

142441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970.

The product of its digits is 128, while the sum is 16.

The square root of 142441 is about 377.4135662639. The cubic root of 142441 is about 52.2249866920.

Adding to 142441 its reverse (144241), we get a palindrome (286682).

The spelling of 142441 in words is "one hundred forty-two thousand, four hundred forty-one", and thus it is an iban number.