11135509 has 12 divisors (see below), whose sum is σ = 13989472. Its totient is φ = 8676360.

The previous prime is 11135471. The next prime is 11135567. The reversal of 11135509 is 90553111.

11135509 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 11135509 - 2¹⁷ = 11004437 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11135599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5727 + ... + 7420.

Almost surely, 2^11135509 is an apocalyptic number.

It is an amenable number.

11135509 is a deficient number, since it is larger than the sum of its proper divisors (2853963).

11135509 is a wasteful number, since it uses less digits than its factorization.

11135509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13176 (or 13165 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 11135509 is about 3336.9910098770. The cubic root of 11135509 is about 223.3075248016.

The spelling of 11135509 in words is "eleven million, one hundred thirty-five thousand, five hundred nine".