135818841 has 16 divisors (see below), whose sum is σ = 190846080. Its totient is φ = 85747200.

The previous prime is 135818827. The next prime is 135818857. The reversal of 135818841 is 148818531.

It is not a de Polignac number, because 135818841 - 2⁶ = 135818777 is a prime.

It is a super-3 number, since 3×135818841³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135818841.

It is not an unprimeable number, because it can be changed into a prime (135818141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776 + ... + 16713.

It is an arithmetic number, because the mean of its divisors is an integer number (11927880).

Almost surely, 2^135818841 is an apocalyptic number.

It is an amenable number.

135818841 is a deficient number, since it is larger than the sum of its proper divisors (55027239).

135818841 is a wasteful number, since it uses less digits than its factorization.

135818841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19616.

The product of its digits is 30720, while the sum is 39.

The square root of 135818841 is about 11654.1340733664. The cubic root of 135818841 is about 514.0278780420.

It can be divided in two parts, 13581 and 8841, that added together give a palindrome (22422).

The spelling of 135818841 in words is "one hundred thirty-five million, eight hundred eighteen thousand, eight hundred forty-one".