135501230647 has 4 divisors (see below), whose sum is σ = 135637963456. Its totient is φ = 135364497840.

The previous prime is 135501230621. The next prime is 135501230677. The reversal of 135501230647 is 746032105531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746032105531 = 4139 ⋅180244529.

It is a cyclic number.

It is not a de Polignac number, because 135501230647 - 2¹⁹ = 135500706359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135501230677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68364918 + ... + 68366899.

It is an arithmetic number, because the mean of its divisors is an integer number (33909490864).

Almost surely, 2^135501230647 is an apocalyptic number.

135501230647 is a deficient number, since it is larger than the sum of its proper divisors (136732809).

135501230647 is an equidigital number, since it uses as much as digits as its factorization.

135501230647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136732808.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 135501230647 in words is "one hundred thirty-five billion, five hundred one million, two hundred thirty thousand, six hundred forty-seven".