142528271 has 4 divisors (see below), whose sum is σ = 143939544. Its totient is φ = 141117000.

The previous prime is 142528261. The next prime is 142528279. The reversal of 142528271 is 172825241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142528271 - 2¹⁸ = 142266127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142528279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705485 + ... + 705686.

It is an arithmetic number, because the mean of its divisors is an integer number (35984886).

Almost surely, 2^142528271 is an apocalyptic number.

142528271 is a deficient number, since it is larger than the sum of its proper divisors (1411273).

142528271 is a wasteful number, since it uses less digits than its factorization.

142528271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411272.

The product of its digits is 8960, while the sum is 32.

The square root of 142528271 is about 11938.5204694719. The cubic root of 142528271 is about 522.3565027978.

The spelling of 142528271 in words is "one hundred forty-two million, five hundred twenty-eight thousand, two hundred seventy-one".