142867 has 2 divisors, whose sum is σ = 142868. Its totient is φ = 142866.

The previous prime is 142841. The next prime is 142871. The reversal of 142867 is 768241.

It is a strong prime.

It is an emirp because it is prime and its reverse (768241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142867 is a prime.

It is a Chen prime.

142867 is a lucky number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is not a weakly prime, because it can be changed into another prime (142837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71433 + 71434.

It is an arithmetic number, because the mean of its divisors is an integer number (71434).

2¹⁴²⁸⁶⁷ is an apocalyptic number.

142867 is a deficient number, since it is larger than the sum of its proper divisors (1).

142867 is an equidigital number, since it uses as much as digits as its factorization.

142867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 142867 is about 377.9775125586. The cubic root of 142867 is about 52.2769981731.

The spelling of 142867 in words is "one hundred forty-two thousand, eight hundred sixty-seven".