135320187687 has 8 divisors (see below), whose sum is σ = 184622891904. Its totient is φ = 88115470968.

The previous prime is 135320187661. The next prime is 135320187707. The reversal of 135320187687 is 786781023531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135320187687 - 2⁶ = 135320187623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135320187787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524496723 + ... + 524496980.

It is an arithmetic number, because the mean of its divisors is an integer number (23077861488).

Almost surely, 2^135320187687 is an apocalyptic number.

135320187687 is a deficient number, since it is larger than the sum of its proper divisors (49302704217).

135320187687 is a wasteful number, since it uses less digits than its factorization.

135320187687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048993749.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 135320187687 in words is "one hundred thirty-five billion, three hundred twenty million, one hundred eighty-seven thousand, six hundred eighty-seven".