135545601 has 16 divisors (see below), whose sum is σ = 198512640. Its totient is φ = 81884880.

The previous prime is 135545587. The next prime is 135545611. The reversal of 135545601 is 106545531.

It is not a de Polignac number, because 135545601 - 2¹⁴ = 135529217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135545611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50385 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (12407040).

Almost surely, 2^135545601 is an apocalyptic number.

It is an amenable number.

135545601 is a deficient number, since it is larger than the sum of its proper divisors (62967039).

135545601 is a wasteful number, since it uses less digits than its factorization.

135545601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103436.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 135545601 is about 11642.4052927219. The cubic root of 135545601 is about 513.6829399627.

The spelling of 135545601 in words is "one hundred thirty-five million, five hundred forty-five thousand, six hundred one".