135124511 has 4 divisors (see below), whose sum is σ = 135824832. Its totient is φ = 134424192.

The previous prime is 135124501. The next prime is 135124537. The reversal of 135124511 is 115421531.

135124511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115421531 = 151 ⋅764381.

It is a cyclic number.

It is not a de Polignac number, because 135124511 - 2²² = 130930207 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 (135124501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349871 + ... + 350256.

It is an arithmetic number, because the mean of its divisors is an integer number (33956208).

Almost surely, 2^135124511 is an apocalyptic number.

135124511 is a deficient number, since it is larger than the sum of its proper divisors (700321).

135124511 is an equidigital number, since it uses as much as digits as its factorization.

135124511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700320.

The product of its digits is 600, while the sum is 23.

The square root of 135124511 is about 11624.3069040696. The cubic root of 135124511 is about 513.1504472567.

The spelling of 135124511 in words is "one hundred thirty-five million, one hundred twenty-four thousand, five hundred eleven".