135612305 has 8 divisors (see below), whose sum is σ = 164413032. Its totient is φ = 107371008.

The previous prime is 135612299. The next prime is 135612307. The reversal of 135612305 is 503216531.

It can be written as a sum of positive squares in 4 ways, for example, as 35952016 + 99660289 = 5996^2 + 9983^2 .

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 135612305 - 2⁸ = 135612049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135612307) 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 7 ways as a sum of consecutive naturals, for example, 139322 + ... + 140291.

It is an arithmetic number, because the mean of its divisors is an integer number (20551629).

Almost surely, 2^135612305 is an apocalyptic number.

It is an amenable number.

135612305 is a deficient number, since it is larger than the sum of its proper divisors (28800727).

135612305 is an equidigital number, since it uses as much as digits as its factorization.

135612305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279715.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 135612305 is about 11645.2696405021. The cubic root of 135612305 is about 513.7671898077.

Adding to 135612305 its reverse (503216531), we get a palindrome (638828836).

The spelling of 135612305 in words is "one hundred thirty-five million, six hundred twelve thousand, three hundred five".