135875173 has 4 divisors (see below), whose sum is σ = 155285920. Its totient is φ = 116464428.

The previous prime is 135875161. The next prime is 135875183. The reversal of 135875173 is 371578531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135875173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135875153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9705363 + ... + 9705376.

It is an arithmetic number, because the mean of its divisors is an integer number (38821480).

Almost surely, 2^135875173 is an apocalyptic number.

It is an amenable number.

135875173 is a deficient number, since it is larger than the sum of its proper divisors (19410747).

135875173 is an equidigital number, since it uses as much as digits as its factorization.

135875173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19410746.

The product of its digits is 88200, while the sum is 40.

The square root of 135875173 is about 11656.5506475973. The cubic root of 135875173 is about 514.0989340061.

The spelling of 135875173 in words is "one hundred thirty-five million, eight hundred seventy-five thousand, one hundred seventy-three".