142019135 has 16 divisors (see below), whose sum is σ = 182644416. Its totient is φ = 105735168.

The previous prime is 142019123. The next prime is 142019161. The reversal of 142019135 is 531910241.

It is a cyclic number.

It is not a de Polignac number, because 142019135 - 2²⁰ = 140970559 is a prime.

It is a super-3 number, since 3×142019135³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 12434 + ... + 20943.

It is an arithmetic number, because the mean of its divisors is an integer number (11415276).

Almost surely, 2^142019135 is an apocalyptic number.

142019135 is a deficient number, since it is larger than the sum of its proper divisors (40625281).

142019135 is a wasteful number, since it uses less digits than its factorization.

142019135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33442.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 142019135 is about 11917.1781475314. The cubic root of 142019135 is about 521.7337776771.

Adding to 142019135 its reverse (531910241), we get a palindrome (673929376).

The spelling of 142019135 in words is "one hundred forty-two million, nineteen thousand, one hundred thirty-five".