135171932175 has 72 divisors (see below), whose sum is σ = 280824791936. Its totient is φ = 60870553920.

The previous prime is 135171932111. The next prime is 135171932239. The reversal of 135171932175 is 571239171531.

It is an interprime number because it is at equal distance from previous prime (135171932111) and next prime (135171932239).

It is not a de Polignac number, because 135171932175 - 2⁶ = 135171932111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135171932175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 534949 + ... + 745998.

Almost surely, 2^135171932175 is an apocalyptic number.

135171932175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135171932175 is an abundant number, since it is smaller than the sum of its proper divisors (145652859761).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135171932175 is a wasteful number, since it uses less digits than its factorization.

135171932175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281037 (or 1281029 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The spelling of 135171932175 in words is "one hundred thirty-five billion, one hundred seventy-one million, nine hundred thirty-two thousand, one hundred seventy-five".