142141 has 4 divisors (see below), whose sum is σ = 142912. Its totient is φ = 141372.

The previous prime is 142123. The next prime is 142151. The reversal of 142141 is 141241.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142141 - 2⁹ = 141629 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142111) 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, 76 + ... + 538.

It is an arithmetic number, because the mean of its divisors is an integer number (35728).

2¹⁴²¹⁴¹ is an apocalyptic number.

It is an amenable number.

142141 is a deficient number, since it is larger than the sum of its proper divisors (771).

142141 is an equidigital number, since it uses as much as digits as its factorization.

142141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its digits is 32, while the sum is 13.

The square root of 142141 is about 377.0159147834. The cubic root of 142141 is about 52.1882966281.

Adding to 142141 its reverse (141241), we get a palindrome (283382).

Subtracting from 142141 its reverse (141241), we obtain a square (900 = 30²).

The spelling of 142141 in words is "one hundred forty-two thousand, one hundred forty-one", and thus it is an iban number.