142047 has 8 divisors (see below), whose sum is σ = 210480. Its totient is φ = 94680.

The previous prime is 142039. The next prime is 142049. The reversal of 142047 is 740241.

It is a happy number.

It is not a de Polignac number, because 142047 - 2³ = 142039 is a prime.

142047 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142047.

It is not an unprimeable number, because it can be changed into a prime (142049) 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 7 ways as a sum of consecutive naturals, for example, 2604 + ... + 2657.

It is an arithmetic number, because the mean of its divisors is an integer number (26310).

2¹⁴²⁰⁴⁷ is an apocalyptic number.

142047 is a deficient number, since it is larger than the sum of its proper divisors (68433).

142047 is an equidigital number, since it uses as much as digits as its factorization.

142047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270 (or 5264 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 142047 is about 376.8912309938. The cubic root of 142047 is about 52.1767897870.

Adding to 142047 its reverse (740241), we get a palindrome (882288).

The spelling of 142047 in words is "one hundred forty-two thousand, forty-seven", and thus it is an iban number.