135266881 has 8 divisors (see below), whose sum is σ = 139305600. Its totient is φ = 131286480.

The previous prime is 135266869. The next prime is 135266891. The reversal of 135266881 is 188662531.

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 135266881 - 2⁵ = 135266849 is a prime.

It is a super-2 number, since 2×135266881² = 36594258190936322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135266821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9850 + ... + 19171.

It is an arithmetic number, because the mean of its divisors is an integer number (17413200).

Almost surely, 2^135266881 is an apocalyptic number.

It is an amenable number.

135266881 is a deficient number, since it is larger than the sum of its proper divisors (4038719).

135266881 is an equidigital number, since it uses as much as digits as its factorization.

135266881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29159.

The product of its digits is 69120, while the sum is 40.

The square root of 135266881 is about 11630.4290978450. The cubic root of 135266881 is about 513.3306059993.

The spelling of 135266881 in words is "one hundred thirty-five million, two hundred sixty-six thousand, eight hundred eighty-one".