142125135 has 8 divisors (see below), whose sum is σ = 227400240. Its totient is φ = 75800064.

The previous prime is 142125131. The next prime is 142125161. The reversal of 142125135 is 531521241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142125135 - 2² = 142125131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142125131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4737490 + ... + 4737519.

It is an arithmetic number, because the mean of its divisors is an integer number (28425030).

Almost surely, 2^142125135 is an apocalyptic number.

142125135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142125135 is a deficient number, since it is larger than the sum of its proper divisors (85275105).

142125135 is an equidigital number, since it uses as much as digits as its factorization.

142125135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475017.

The product of its digits is 1200, while the sum is 24.

The square root of 142125135 is about 11921.6246795477. The cubic root of 142125135 is about 521.8635489856.

Adding to 142125135 its reverse (531521241), we get a palindrome (673646376).

The spelling of 142125135 in words is "one hundred forty-two million, one hundred twenty-five thousand, one hundred thirty-five".