142647 has 8 divisors (see below), whose sum is σ = 201456. Its totient is φ = 89472.

The previous prime is 142619. The next prime is 142657. The reversal of 142647 is 746241.

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

It is not a de Polignac number, because 142647 - 2⁸ = 142391 is a prime.

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 142647.

It is not an unprimeable number, because it can be changed into a prime (142607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348 + ... + 1449.

It is an arithmetic number, because the mean of its divisors is an integer number (25182).

2¹⁴²⁶⁴⁷ is an apocalyptic number.

142647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142647 is a deficient number, since it is larger than the sum of its proper divisors (58809).

142647 is a wasteful number, since it uses less digits than its factorization.

142647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817.

The product of its digits is 1344, while the sum is 24.

The square root of 142647 is about 377.6863778322. The cubic root of 142647 is about 52.2501507135.

Adding to 142647 its reverse (746241), we get a palindrome (888888).

The spelling of 142647 in words is "one hundred forty-two thousand, six hundred forty-seven".