142135 has 16 divisors (see below), whose sum is σ = 202752. Its totient is φ = 93600.

The previous prime is 142123. The next prime is 142151. The reversal of 142135 is 531241.

It is not a de Polignac number, because 142135 - 2⁷ = 142007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (12672).

2¹⁴²¹³⁵ is an apocalyptic number.

142135 is a deficient number, since it is larger than the sum of its proper divisors (60617).

142135 is a wasteful number, since it uses less digits than its factorization.

142135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174.

The product of its digits is 120, while the sum is 16.

The square root of 142135 is about 377.0079574757. The cubic root of 142135 is about 52.1875623005.

Adding to 142135 its reverse (531241), we get a palindrome (673376).

It can be divided in two parts, 14 and 2135, that multiplied together give a triangular number (29890 = T₂₄₄).

The spelling of 142135 in words is "one hundred forty-two thousand, one hundred thirty-five".