135828985 has 4 divisors (see below), whose sum is σ = 162994788. Its totient is φ = 108663184.

The previous prime is 135828977. The next prime is 135828989. The reversal of 135828985 is 589828531.

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 81938704 + 53890281 = 9052^2 + 7341^2 .

It is a cyclic number.

It is not a de Polignac number, because 135828985 - 2³ = 135828977 is a prime.

It is a super-2 number, since 2×135828985² = 36899026332260450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135828989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13582894 + ... + 13582903.

It is an arithmetic number, because the mean of its divisors is an integer number (40748697).

Almost surely, 2^135828985 is an apocalyptic number.

It is an amenable number.

135828985 is a deficient number, since it is larger than the sum of its proper divisors (27165803).

135828985 is an equidigital number, since it uses as much as digits as its factorization.

135828985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27165802.

The product of its digits is 691200, while the sum is 49.

The square root of 135828985 is about 11654.5692756103. The cubic root of 135828985 is about 514.0406749140.

The spelling of 135828985 in words is "one hundred thirty-five million, eight hundred twenty-eight thousand, nine hundred eighty-five".