135656541 has 12 divisors (see below), whose sum is σ = 201244732. Its totient is φ = 87993216.

The previous prime is 135656533. The next prime is 135656567. The reversal of 135656541 is 145656531.

135656541 is a `hidden beast` number, since 1 + 3 + 56 + 565 + 41 = 666.

135656541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 122544900 + 13111641 = 11070^2 + 3621^2 .

It is not a de Polignac number, because 135656541 - 2³ = 135656533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135656496 and 135656505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135656581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203356 + ... + 204021.

Almost surely, 2^135656541 is an apocalyptic number.

It is an amenable number.

135656541 is a deficient number, since it is larger than the sum of its proper divisors (65588191).

135656541 is a wasteful number, since it uses less digits than its factorization.

135656541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407420 (or 407417 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 135656541 is about 11647.1687976091. The cubic root of 135656541 is about 513.8230464271.

The spelling of 135656541 in words is "one hundred thirty-five million, six hundred fifty-six thousand, five hundred forty-one".