142242125 has 8 divisors (see below), whose sum is σ = 177518328. Its totient is φ = 113793600.

The previous prime is 142242109. The next prime is 142242137. The reversal of 142242125 is 521242241.

142242125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 203401 + 142038724 = 451^2 + 11918^2 .

It is not a de Polignac number, because 142242125 - 2⁴ = 142242109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142242125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568844 + ... + 569093.

It is an arithmetic number, because the mean of its divisors is an integer number (22189791).

Almost surely, 2^142242125 is an apocalyptic number.

It is an amenable number.

142242125 is a deficient number, since it is larger than the sum of its proper divisors (35276203).

142242125 is an equidigital number, since it uses as much as digits as its factorization.

142242125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137952 (or 1137942 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 142242125 is about 11926.5303001334. The cubic root of 142242125 is about 522.0067000016.

Adding to 142242125 its reverse (521242241), we get a palindrome (663484366).

The spelling of 142242125 in words is "one hundred forty-two million, two hundred forty-two thousand, one hundred twenty-five".