135541511 has 16 divisors (see below), whose sum is σ = 159404544. Its totient is φ = 112847904.

The previous prime is 135541499. The next prime is 135541513. The reversal of 135541511 is 115145531.

It is a cyclic number.

It is not a de Polignac number, because 135541511 - 2²² = 131347207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135541513) 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, 36440 + ... + 39986.

It is an arithmetic number, because the mean of its divisors is an integer number (9962784).

Almost surely, 2^135541511 is an apocalyptic number.

135541511 is a deficient number, since it is larger than the sum of its proper divisors (23863033).

135541511 is a wasteful number, since it uses less digits than its factorization.

135541511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710.

The product of its digits is 1500, while the sum is 26.

The square root of 135541511 is about 11642.2296404082. The cubic root of 135541511 is about 513.6777732283.

The spelling of 135541511 in words is "one hundred thirty-five million, five hundred forty-one thousand, five hundred eleven".