135579983 has 8 divisors (see below), whose sum is σ = 169034880. Its totient is φ = 105646680.

The previous prime is 135579979. The next prime is 135580043. The reversal of 135579983 is 389975531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135579983 - 2² = 135579979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135579083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880313 + ... + 880466.

It is an arithmetic number, because the mean of its divisors is an integer number (21129360).

Almost surely, 2^135579983 is an apocalyptic number.

135579983 is a deficient number, since it is larger than the sum of its proper divisors (33454897).

135579983 is a wasteful number, since it uses less digits than its factorization.

135579983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760797.

The product of its digits is 1020600, while the sum is 50.

The square root of 135579983 is about 11643.8817840100. The cubic root of 135579983 is about 513.7263692677.

The spelling of 135579983 in words is "one hundred thirty-five million, five hundred seventy-nine thousand, nine hundred eighty-three".