142671 has 8 divisors (see below), whose sum is σ = 200320. Its totient is φ = 90072.

The previous prime is 142657. The next prime is 142673. The reversal of 142671 is 176241.

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

It is not a de Polignac number, because 142671 - 2⁶ = 142607 is a prime.

It is a super-3 number, since 3×142671³ = 8712210710333133, which contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142673) 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, 1195 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (25040).

2¹⁴²⁶⁷¹ is an apocalyptic number.

142671 is a deficient number, since it is larger than the sum of its proper divisors (57649).

142671 is a wasteful number, since it uses less digits than its factorization.

142671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525.

The product of its digits is 336, while the sum is 21.

The square root of 142671 is about 377.7181488888. The cubic root of 142671 is about 52.2530808681.

The spelling of 142671 in words is "one hundred forty-two thousand, six hundred seventy-one".