142280125 has 16 divisors (see below), whose sum is σ = 191226672. Its totient is φ = 105067200.

The previous prime is 142280087. The next prime is 142280129. The reversal of 142280125 is 521082241.

It can be written as a sum of positive squares in 8 ways, for example, as 114126489 + 28153636 = 10683^2 + 5306^2 .

It is not a de Polignac number, because 142280125 - 2¹⁹ = 141755837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 142280125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142280129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42154 + ... + 45403.

It is an arithmetic number, because the mean of its divisors is an integer number (11951667).

Almost surely, 2^142280125 is an apocalyptic number.

It is an amenable number.

142280125 is a deficient number, since it is larger than the sum of its proper divisors (48946547).

142280125 is an equidigital number, since it uses as much as digits as its factorization.

142280125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87585 (or 87575 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 142280125 is about 11928.1232807177. The cubic root of 142280125 is about 522.0531805793.

The spelling of 142280125 in words is "one hundred forty-two million, two hundred eighty thousand, one hundred twenty-five".