135199707871 has 4 divisors (see below), whose sum is σ = 135309717000. Its totient is φ = 135089698744.

The previous prime is 135199707739. The next prime is 135199707901. The reversal of 135199707871 is 178707991531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178707991531 = 59 ⋅3028949009.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135199707871 is a prime.

It is a super-2 number, since 2×135199707871² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135199717871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55002721 + ... + 55005178.

It is an arithmetic number, because the mean of its divisors is an integer number (33827429250).

Almost surely, 2^135199707871 is an apocalyptic number.

135199707871 is a deficient number, since it is larger than the sum of its proper divisors (110009129).

135199707871 is a wasteful number, since it uses less digits than its factorization.

135199707871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110009128.

The product of its (nonzero) digits is 3333960, while the sum is 58.

The spelling of 135199707871 in words is "one hundred thirty-five billion, one hundred ninety-nine million, seven hundred seven thousand, eight hundred seventy-one".