142107500 has 30 divisors (see below), whose sum is σ = 310766148. Its totient is φ = 56842000.

The previous prime is 142107487. The next prime is 142107521. The reversal of 142107500 is 5701241.

142107500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 25922 + ... + 30921.

Almost surely, 2^142107500 is an apocalyptic number.

142107500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142107500 is an abundant number, since it is smaller than the sum of its proper divisors (168658648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142107500 is an equidigital number, since it uses as much as digits as its factorization.

142107500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56867 (or 56850 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 142107500 is about 11920.8850342582. The cubic root of 142107500 is about 521.8419636778.

Adding to 142107500 its reverse (5701241), we get a palindrome (147808741).

The spelling of 142107500 in words is "one hundred forty-two million, one hundred seven thousand, five hundred".