135579443 has 8 divisors (see below), whose sum is σ = 138800640. Its totient is φ = 132372360.

The previous prime is 135579439. The next prime is 135579467. The reversal of 135579443 is 344975531.

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 135579443 - 2² = 135579439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135579443.

It is not an unprimeable number, because it can be changed into a prime (135579413) 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, 17348 + ... + 23918.

It is an arithmetic number, because the mean of its divisors is an integer number (17350080).

Almost surely, 2^135579443 is an apocalyptic number.

135579443 is a deficient number, since it is larger than the sum of its proper divisors (3221197).

135579443 is an equidigital number, since it uses as much as digits as its factorization.

135579443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057.

The product of its digits is 226800, while the sum is 41.

The square root of 135579443 is about 11643.8585958436. The cubic root of 135579443 is about 513.7256872284.

The spelling of 135579443 in words is "one hundred thirty-five million, five hundred seventy-nine thousand, four hundred forty-three".