136672166 has 4 divisors (see below), whose sum is σ = 205008252. Its totient is φ = 68336082.

The previous prime is 136672139. The next prime is 136672171. The reversal of 136672166 is 661276631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661276631 = 1153 ⋅573527.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34168040 + ... + 34168043.

It is an arithmetic number, because the mean of its divisors is an integer number (51252063).

Almost surely, 2^136672166 is an apocalyptic number.

136672166 is a deficient number, since it is larger than the sum of its proper divisors (68336086).

136672166 is an equidigital number, since it uses as much as digits as its factorization.

136672166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68336085.

The product of its digits is 54432, while the sum is 38.

The square root of 136672166 is about 11690.6871483245. The cubic root of 136672166 is about 515.1021458243.

The spelling of 136672166 in words is "one hundred thirty-six million, six hundred seventy-two thousand, one hundred sixty-six".