135175966 has 4 divisors (see below), whose sum is σ = 202763952. Its totient is φ = 67587982.

The previous prime is 135175949. The next prime is 135175981. The reversal of 135175966 is 669571531.

It is a happy number.

135175966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669571531 = 79 ⋅8475589.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33793990 + ... + 33793993.

It is an arithmetic number, because the mean of its divisors is an integer number (50690988).

Almost surely, 2^135175966 is an apocalyptic number.

135175966 is a deficient number, since it is larger than the sum of its proper divisors (67587986).

135175966 is an equidigital number, since it uses as much as digits as its factorization.

135175966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67587985.

The product of its digits is 170100, while the sum is 43.

The square root of 135175966 is about 11626.5199436461. The cubic root of 135175966 is about 513.2155743636.

The spelling of 135175966 in words is "one hundred thirty-five million, one hundred seventy-five thousand, nine hundred sixty-six".