135149841 has 24 divisors (see below), whose sum is σ = 199668456. Its totient is φ = 88058880.

The previous prime is 135149837. The next prime is 135149843. The reversal of 135149841 is 148941531.

135149841 is a `hidden beast` number, since 13 + 514 + 98 + 41 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 497025 + 134652816 = 705^2 + 11604^2 .

It is not a de Polignac number, because 135149841 - 2² = 135149837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135149796 and 135149805.

It is not an unprimeable number, because it can be changed into a prime (135149843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200481 + ... + 201153.

It is an arithmetic number, because the mean of its divisors is an integer number (8319519).

Almost surely, 2^135149841 is an apocalyptic number.

It is an amenable number.

135149841 is a deficient number, since it is larger than the sum of its proper divisors (64518615).

135149841 is a wasteful number, since it uses less digits than its factorization.

135149841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1150 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 135149841 is about 11625.3963803390. The cubic root of 135149841 is about 513.1825097562.

The spelling of 135149841 in words is "one hundred thirty-five million, one hundred forty-nine thousand, eight hundred forty-one".