142234271 has 4 divisors (see below), whose sum is σ = 142261752. Its totient is φ = 142206792.

The previous prime is 142234243. The next prime is 142234273. The reversal of 142234271 is 172432241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172432241 = 17 ⋅10143073.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142234271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142234271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142234273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365 + ... + 17198.

It is an arithmetic number, because the mean of its divisors is an integer number (35565438).

Almost surely, 2^142234271 is an apocalyptic number.

142234271 is a deficient number, since it is larger than the sum of its proper divisors (27481).

142234271 is an equidigital number, since it uses as much as digits as its factorization.

142234271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27480.

The product of its digits is 2688, while the sum is 26.

The square root of 142234271 is about 11926.2010296657. The cubic root of 142234271 is about 521.9970921678.

The spelling of 142234271 in words is "one hundred forty-two million, two hundred thirty-four thousand, two hundred seventy-one".