161266135 has 8 divisors (see below), whose sum is σ = 194204880. Its totient is φ = 128555904.

The previous prime is 161266111. The next prime is 161266163. The reversal of 161266135 is 531662161.

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

It is a cyclic number.

It is not a de Polignac number, because 161266135 - 2⁵ = 161266103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161266097 and 161266106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55570 + ... + 58399.

It is an arithmetic number, because the mean of its divisors is an integer number (24275610).

Almost surely, 2^161266135 is an apocalyptic number.

161266135 is a deficient number, since it is larger than the sum of its proper divisors (32938745).

161266135 is a wasteful number, since it uses less digits than its factorization.

161266135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114257.

The product of its digits is 6480, while the sum is 31.

The square root of 161266135 is about 12699.0603983129. The cubic root of 161266135 is about 544.3117704931.

The spelling of 161266135 in words is "one hundred sixty-one million, two hundred sixty-six thousand, one hundred thirty-five".