135142505 has 8 divisors (see below), whose sum is σ = 162285000. Its totient is φ = 108038016.

The previous prime is 135142499. The next prime is 135142529. The reversal of 135142505 is 505241531.

It can be written as a sum of positive squares in 4 ways, for example, as 42367081 + 92775424 = 6509^2 + 9632^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 135142505 - 2¹⁰ = 135141481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (20285625).

Almost surely, 2^135142505 is an apocalyptic number.

It is an amenable number.

135142505 is a deficient number, since it is larger than the sum of its proper divisors (27142495).

135142505 is a wasteful number, since it uses less digits than its factorization.

135142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19003.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 135142505 is about 11625.0808599338. The cubic root of 135142505 is about 513.1732243217.

The spelling of 135142505 in words is "one hundred thirty-five million, one hundred forty-two thousand, five hundred five".