135025216717715 has 4 divisors (see below), whose sum is σ = 162030260061264. Its totient is φ = 108020173374168.

The previous prime is 135025216717711. The next prime is 135025216717763. The reversal of 135025216717715 is 517717612520531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135025216717715 - 2² = 135025216717711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135025216717711) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13502521671767 + ... + 13502521671776.

It is an arithmetic number, because the mean of its divisors is an integer number (40507565015316).

Almost surely, 2^{135025216717715} is an apocalyptic number.

135025216717715 is a deficient number, since it is larger than the sum of its proper divisors (27005043343549).

135025216717715 is an equidigital number, since it uses as much as digits as its factorization.

135025216717715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27005043343548.

The product of its (nonzero) digits is 3087000, while the sum is 53.

The spelling of 135025216717715 in words is "one hundred thirty-five trillion, twenty-five billion, two hundred sixteen million, seven hundred seventeen thousand, seven hundred fifteen".