135815011 has 4 divisors (see below), whose sum is σ = 135925000. Its totient is φ = 135705024.

The previous prime is 135814961. The next prime is 135815077. The reversal of 135815011 is 110518531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135815011 - 2⁷ = 135814883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135815111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53121 + ... + 55618.

It is an arithmetic number, because the mean of its divisors is an integer number (33981250).

Almost surely, 2^135815011 is an apocalyptic number.

135815011 is a deficient number, since it is larger than the sum of its proper divisors (109989).

135815011 is a wasteful number, since it uses less digits than its factorization.

135815011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109988.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 135815011 is about 11653.9697528353. The cubic root of 135815011 is about 514.0230462497.

The spelling of 135815011 in words is "one hundred thirty-five million, eight hundred fifteen thousand, eleven".