166135135 has 8 divisors (see below), whose sum is σ = 211089456. Its totient is φ = 125089920.

The previous prime is 166135129. The next prime is 166135139. The reversal of 166135135 is 531531661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166135135 - 2⁵ = 166135103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166135097 and 166135106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166135139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977181 + ... + 977350.

It is an arithmetic number, because the mean of its divisors is an integer number (26386182).

Almost surely, 2^166135135 is an apocalyptic number.

166135135 is a deficient number, since it is larger than the sum of its proper divisors (44954321).

166135135 is a wasteful number, since it uses less digits than its factorization.

166135135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954553.

The product of its digits is 8100, while the sum is 31.

The square root of 166135135 is about 12889.3419149311. The cubic root of 166135135 is about 549.7355588269.

Adding to 166135135 its reverse (531531661), we get a palindrome (697666796).

The spelling of 166135135 in words is "one hundred sixty-six million, one hundred thirty-five thousand, one hundred thirty-five".