142508 has 12 divisors (see below), whose sum is σ = 260400. Its totient is φ = 68112.

The previous prime is 142501. The next prime is 142529. The reversal of 142508 is 805241.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 142508.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142508.

It is not an unprimeable number, because it can be changed into a prime (142501) by changing a digit.

142508 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683 + ... + 866.

It is an arithmetic number, because the mean of its divisors is an integer number (21700).

2¹⁴²⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

142508 is a deficient number, since it is larger than the sum of its proper divisors (117892).

142508 is a wasteful number, since it uses less digits than its factorization.

142508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 142508 is about 377.5023178737. The cubic root of 142508 is about 52.2331737674.

Adding to 142508 its reverse (805241), we get a palindrome (947749).

The spelling of 142508 in words is "one hundred forty-two thousand, five hundred eight".