135542511 has 16 divisors (see below), whose sum is σ = 216250720. Its totient is φ = 83410560.

The previous prime is 135542503. The next prime is 135542527. The reversal of 135542511 is 115245531.

135542511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135542511 - 2³ = 135542503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135542111) 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, 192730 + ... + 193431.

It is an arithmetic number, because the mean of its divisors is an integer number (13515670).

Almost surely, 2^135542511 is an apocalyptic number.

135542511 is a deficient number, since it is larger than the sum of its proper divisors (80708209).

135542511 is a wasteful number, since it uses less digits than its factorization.

135542511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386183 (or 386177 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 135542511 is about 11642.2725874290. The cubic root of 135542511 is about 513.6790364981.

The spelling of 135542511 in words is "one hundred thirty-five million, five hundred forty-two thousand, five hundred eleven".