142273843 has 8 divisors (see below), whose sum is σ = 153810320. Its totient is φ = 131142240.

The previous prime is 142273829. The next prime is 142273853. The reversal of 142273843 is 348372241.

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 142273843 - 2⁵ = 142273811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142273799 and 142273808.

It is not an unprimeable number, because it can be changed into a prime (142273853) 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, 100488 + ... + 101893.

It is an arithmetic number, because the mean of its divisors is an integer number (19226290).

Almost surely, 2^142273843 is an apocalyptic number.

142273843 is a deficient number, since it is larger than the sum of its proper divisors (11536477).

142273843 is a wasteful number, since it uses less digits than its factorization.

142273843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202437.

The product of its digits is 32256, while the sum is 34.

The square root of 142273843 is about 11927.8599505527. The cubic root of 142273843 is about 522.0454971770.

The spelling of 142273843 in words is "one hundred forty-two million, two hundred seventy-three thousand, eight hundred forty-three".