135239500623 has 16 divisors (see below), whose sum is σ = 184821751296. Its totient is φ = 87928832160.

The previous prime is 135239500621. The next prime is 135239500633. The reversal of 135239500623 is 326005932531.

It is a happy number.

It is not a de Polignac number, because 135239500623 - 2¹ = 135239500621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135239500621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520043 + ... + 2573148.

It is an arithmetic number, because the mean of its divisors is an integer number (11551359456).

Almost surely, 2^135239500623 is an apocalyptic number.

135239500623 is a deficient number, since it is larger than the sum of its proper divisors (49582250673).

135239500623 is a wasteful number, since it uses less digits than its factorization.

135239500623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093414.

The product of its (nonzero) digits is 145800, while the sum is 39.

The spelling of 135239500623 in words is "one hundred thirty-five billion, two hundred thirty-nine million, five hundred thousand, six hundred twenty-three".