135530638671 has 32 divisors (see below), whose sum is σ = 200113056000. Its totient is φ = 81245783808.

The previous prime is 135530638667. The next prime is 135530638703. The reversal of 135530638671 is 176836035531.

It is not a de Polignac number, because 135530638671 - 2² = 135530638667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135530638671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135530634671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597310 + ... + 792363.

It is an arithmetic number, because the mean of its divisors is an integer number (6253533000).

Almost surely, 2^135530638671 is an apocalyptic number.

135530638671 is a deficient number, since it is larger than the sum of its proper divisors (64582417329).

135530638671 is a wasteful number, since it uses less digits than its factorization.

135530638671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389783.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 135530638671 in words is "one hundred thirty-five billion, five hundred thirty million, six hundred thirty-eight thousand, six hundred seventy-one".