135609083 has 4 divisors (see below), whose sum is σ = 135690600. Its totient is φ = 135527568.

The previous prime is 135609049. The next prime is 135609091. The reversal of 135609083 is 380906531.

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 135609083 - 2²⁰ = 134560507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135609043) 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, 38210 + ... + 41607.

It is an arithmetic number, because the mean of its divisors is an integer number (33922650).

Almost surely, 2^135609083 is an apocalyptic number.

135609083 is a deficient number, since it is larger than the sum of its proper divisors (81517).

135609083 is an equidigital number, since it uses as much as digits as its factorization.

135609083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81516.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 135609083 is about 11645.1313002473. The cubic root of 135609083 is about 513.7631209267.

The spelling of 135609083 in words is "one hundred thirty-five million, six hundred nine thousand, eighty-three".