136823161 has 8 divisors (see below), whose sum is σ = 144711200. Its totient is φ = 129003840.

The previous prime is 136823129. The next prime is 136823173. The reversal of 136823161 is 161328631.

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 136823161 - 2⁵ = 136823129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136823101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13056 + ... + 21073.

It is an arithmetic number, because the mean of its divisors is an integer number (18088900).

Almost surely, 2^136823161 is an apocalyptic number.

It is an amenable number.

136823161 is a deficient number, since it is larger than the sum of its proper divisors (7888039).

136823161 is a wasteful number, since it uses less digits than its factorization.

136823161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34359.

The product of its digits is 5184, while the sum is 31.

The square root of 136823161 is about 11697.1432837253. The cubic root of 136823161 is about 515.2917704456.

The spelling of 136823161 in words is "one hundred thirty-six million, eight hundred twenty-three thousand, one hundred sixty-one".