135305678 has 4 divisors (see below), whose sum is σ = 202958520. Its totient is φ = 67652838.

The previous prime is 135305671. The next prime is 135305689. The reversal of 135305678 is 876503531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876503531 = 367 ⋅2388293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135305671) 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 as a sum of consecutive naturals, namely, 33826418 + ... + 33826421.

It is an arithmetic number, because the mean of its divisors is an integer number (50739630).

Almost surely, 2^135305678 is an apocalyptic number.

135305678 is a deficient number, since it is larger than the sum of its proper divisors (67652842).

135305678 is an equidigital number, since it uses as much as digits as its factorization.

135305678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67652841.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 135305678 is about 11632.0968874920. The cubic root of 135305678 is about 513.3796788238.

The spelling of 135305678 in words is "one hundred thirty-five million, three hundred five thousand, six hundred seventy-eight".