142943273 has 8 divisors (see below), whose sum is σ = 156473856. Its totient is φ = 129502000.

The previous prime is 142943257. The next prime is 142943303. The reversal of 142943273 is 372349241.

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

It is a cyclic number.

It is not a de Polignac number, because 142943273 - 2⁴ = 142943257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142945273) 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, 18953 + ... + 25398.

It is an arithmetic number, because the mean of its divisors is an integer number (19559232).

Almost surely, 2^142943273 is an apocalyptic number.

It is an amenable number.

142943273 is a deficient number, since it is larger than the sum of its proper divisors (13530583).

142943273 is a wasteful number, since it uses less digits than its factorization.

142943273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44655.

The product of its digits is 36288, while the sum is 35.

The square root of 142943273 is about 11955.8886328035. Note that the first 3 decimals coincide. The cubic root of 142943273 is about 522.8629963093.

The spelling of 142943273 in words is "one hundred forty-two million, nine hundred forty-three thousand, two hundred seventy-three".