142873 has 2 divisors, whose sum is σ = 142874. Its totient is φ = 142872.

The previous prime is 142871. The next prime is 142897. The reversal of 142873 is 378241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138384 + 4489 = 372^2 + 67^2 .

It is an emirp because it is prime and its reverse (378241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142873 - 2¹ = 142871 is a prime.

Together with 142871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71436 + 71437.

It is an arithmetic number, because the mean of its divisors is an integer number (71437).

2¹⁴²⁸⁷³ is an apocalyptic number.

It is an amenable number.

142873 is a deficient number, since it is larger than the sum of its proper divisors (1).

142873 is an equidigital number, since it uses as much as digits as its factorization.

142873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 142873 is about 377.9854494554. The cubic root of 142873 is about 52.2777299904.

The spelling of 142873 in words is "one hundred forty-two thousand, eight hundred seventy-three".