135731613265 has 16 divisors (see below), whose sum is σ = 172467826128. Its totient is φ = 102192685056.

The previous prime is 135731613233. The next prime is 135731613271. The reversal of 135731613265 is 562316137531.

It can be written as a sum of positive squares in 8 ways, for example, as 1740474961 + 133991138304 = 41719^2 + 366048^2 .

It is a cyclic number.

It is not a de Polignac number, because 135731613265 - 2⁵ = 135731613233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2709889 + ... + 2759521.

It is an arithmetic number, because the mean of its divisors is an integer number (10779239133).

Almost surely, 2^135731613265 is an apocalyptic number.

It is an amenable number.

135731613265 is a deficient number, since it is larger than the sum of its proper divisors (36736212863).

135731613265 is a wasteful number, since it uses less digits than its factorization.

135731613265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81828.

The product of its digits is 340200, while the sum is 43.

The spelling of 135731613265 in words is "one hundred thirty-five billion, seven hundred thirty-one million, six hundred thirteen thousand, two hundred sixty-five".