135579445 has 8 divisors (see below), whose sum is σ = 162782136. Its totient is φ = 108405696.

The previous prime is 135579439. The next prime is 135579467. The reversal of 135579445 is 544975531.

It can be written as a sum of positive squares in 4 ways, for example, as 51710481 + 83868964 = 7191^2 + 9158^2 .

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 135579445 - 2⁵ = 135579413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4939 + ... + 17191.

It is an arithmetic number, because the mean of its divisors is an integer number (20347767).

Almost surely, 2^135579445 is an apocalyptic number.

It is an amenable number.

135579445 is a deficient number, since it is larger than the sum of its proper divisors (27202691).

135579445 is a wasteful number, since it uses less digits than its factorization.

135579445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14471.

The product of its digits is 378000, while the sum is 43.

The square root of 135579445 is about 11643.8586817257. The cubic root of 135579445 is about 513.7256897545.

The spelling of 135579445 in words is "one hundred thirty-five million, five hundred seventy-nine thousand, four hundred forty-five".