135840441 has 8 divisors (see below), whose sum is σ = 197586144. Its totient is φ = 82327520.

The previous prime is 135840409. The next prime is 135840457. The reversal of 135840441 is 144048531.

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

It is not a de Polignac number, because 135840441 - 2⁵ = 135840409 is a prime.

It is a super-2 number, since 2×135840441² = 36905250822148962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135840399 and 135840408.

It is not an unprimeable number, because it can be changed into a prime (135840491) by changing a digit.

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, 2058156 + ... + 2058221.

It is an arithmetic number, because the mean of its divisors is an integer number (24698268).

Almost surely, 2^135840441 is an apocalyptic number.

135840441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135840441 is a deficient number, since it is larger than the sum of its proper divisors (61745703).

135840441 is a wasteful number, since it uses less digits than its factorization.

135840441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116391.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 135840441 is about 11655.0607463024. The cubic root of 135840441 is about 514.0551261360.

Adding to 135840441 its reverse (144048531), we get a palindrome (279888972).

The spelling of 135840441 in words is "one hundred thirty-five million, eight hundred forty thousand, four hundred forty-one".