135960089 has 4 divisors (see below), whose sum is σ = 139634724. Its totient is φ = 132285456.

The previous prime is 135960037. The next prime is 135960113. The reversal of 135960089 is 980069531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121176064 + 14784025 = 11008^2 + 3845^2 .

It is a cyclic number.

It is not a de Polignac number, because 135960089 - 2¹² = 135955993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135960589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837262 + ... + 1837335.

It is an arithmetic number, because the mean of its divisors is an integer number (34908681).

Almost surely, 2^135960089 is an apocalyptic number.

It is an amenable number.

135960089 is a deficient number, since it is larger than the sum of its proper divisors (3674635).

135960089 is an equidigital number, since it uses as much as digits as its factorization.

135960089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674634.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 135960089 is about 11660.1924941229. The cubic root of 135960089 is about 514.2060081023.

The spelling of 135960089 in words is "one hundred thirty-five million, nine hundred sixty thousand, eighty-nine".