142131135 has 16 divisors (see below), whose sum is σ = 240787296. Its totient is φ = 71344128.

The previous prime is 142131127. The next prime is 142131163. The reversal of 142131135 is 531131241.

It is not a de Polignac number, because 142131135 - 2³ = 142131127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278434 + ... + 278943.

It is an arithmetic number, because the mean of its divisors is an integer number (15049206).

Almost surely, 2^142131135 is an apocalyptic number.

142131135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142131135 is a deficient number, since it is larger than the sum of its proper divisors (98656161).

142131135 is a wasteful number, since it uses less digits than its factorization.

142131135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557402.

The product of its digits is 360, while the sum is 21.

The square root of 142131135 is about 11921.8763204455. The cubic root of 142131135 is about 521.8708926016.

Adding to 142131135 its reverse (531131241), we get a palindrome (673262376).

The spelling of 142131135 in words is "one hundred forty-two million, one hundred thirty-one thousand, one hundred thirty-five".