135886081 has 8 divisors (see below), whose sum is σ = 143667200. Its totient is φ = 128167920.

The previous prime is 135886067. The next prime is 135886099. The reversal of 135886081 is 180688531.

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

It is a de Polignac number, because none of the positive numbers 2^k-135886081 is a prime.

It is a super-2 number, since 2×135886081² = 36930054019077122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135886021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11265 + ... + 19966.

It is an arithmetic number, because the mean of its divisors is an integer number (17958400).

Almost surely, 2^135886081 is an apocalyptic number.

It is an amenable number.

135886081 is a deficient number, since it is larger than the sum of its proper divisors (7781119).

135886081 is a wasteful number, since it uses less digits than its factorization.

135886081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31479.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 135886081 is about 11657.0185296241. The cubic root of 135886081 is about 514.1126908512.

The spelling of 135886081 in words is "one hundred thirty-five million, eight hundred eighty-six thousand, eighty-one".