142507 has 4 divisors (see below), whose sum is σ = 147136. Its totient is φ = 137880.

The previous prime is 142501. The next prime is 142529. The reversal of 142507 is 705241.

142507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142507 is a prime.

It is the 378-th Hogben number.

It is a Duffinian number.

142507 is a lucky number.

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

It is a nontrivial repunit in base 377.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268 + ... + 2329.

It is an arithmetic number, because the mean of its divisors is an integer number (36784).

2¹⁴²⁵⁰⁷ is an apocalyptic number.

142507 is a deficient number, since it is larger than the sum of its proper divisors (4629).

142507 is an equidigital number, since it uses as much as digits as its factorization.

142507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 142507 is about 377.5009933762. The cubic root of 142507 is about 52.2330515911.

Adding to 142507 its reverse (705241), we get a palindrome (847748).

The spelling of 142507 in words is "one hundred forty-two thousand, five hundred seven".