135112505615 has 4 divisors (see below), whose sum is σ = 162135006744. Its totient is φ = 108090004488.

The previous prime is 135112505609. The next prime is 135112505677. The reversal of 135112505615 is 516505211531.

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 135112505615 - 2²² = 135108311311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13511250557 + ... + 13511250566.

It is an arithmetic number, because the mean of its divisors is an integer number (40533751686).

Almost surely, 2^135112505615 is an apocalyptic number.

135112505615 is a deficient number, since it is larger than the sum of its proper divisors (27022501129).

135112505615 is an equidigital number, since it uses as much as digits as its factorization.

135112505615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27022501128.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 135112505615 in words is "one hundred thirty-five billion, one hundred twelve million, five hundred five thousand, six hundred fifteen".