142588521 has 24 divisors (see below), whose sum is σ = 218855520. Its totient is φ = 89202816.

The previous prime is 142588513. The next prime is 142588573. The reversal of 142588521 is 125885241.

It is not a de Polignac number, because 142588521 - 2³ = 142588513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142588021) 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 23 ways as a sum of consecutive naturals, for example, 14401 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (9118980).

Almost surely, 2^142588521 is an apocalyptic number.

It is an amenable number.

142588521 is a deficient number, since it is larger than the sum of its proper divisors (76266999).

142588521 is a wasteful number, since it uses less digits than its factorization.

142588521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925 (or 7922 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 142588521 is about 11941.0435473622. The cubic root of 142588521 is about 522.4300964914.

The spelling of 142588521 in words is "one hundred forty-two million, five hundred eighty-eight thousand, five hundred twenty-one".