142528771 has 8 divisors (see below), whose sum is σ = 177698304. Its totient is φ = 111061320.

The previous prime is 142528759. The next prime is 142528801. The reversal of 142528771 is 177825241.

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 142528771 - 2⁵ = 142528739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142528771.

It is not an unprimeable number, because it can be changed into a prime (142520771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925435 + ... + 925588.

It is an arithmetic number, because the mean of its divisors is an integer number (22212288).

Almost surely, 2^142528771 is an apocalyptic number.

142528771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142528771 is a deficient number, since it is larger than the sum of its proper divisors (35169533).

142528771 is a wasteful number, since it uses less digits than its factorization.

142528771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851041.

The product of its digits is 31360, while the sum is 37.

The square root of 142528771 is about 11938.5414100718. The cubic root of 142528771 is about 522.3571136192.

The spelling of 142528771 in words is "one hundred forty-two million, five hundred twenty-eight thousand, seven hundred seventy-one".