136066906 has 4 divisors (see below), whose sum is σ = 204100362. Its totient is φ = 68033452.

The previous prime is 136066901. The next prime is 136066907. The reversal of 136066906 is 609660631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609660631 = 1249 ⋅488119.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 17147881 = 10905^2 + 4141^2 .

It is not an unprimeable number, because it can be changed into a prime (136066901) 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 as a sum of consecutive naturals, namely, 34016725 + ... + 34016728.

Almost surely, 2^136066906 is an apocalyptic number.

136066906 is a deficient number, since it is larger than the sum of its proper divisors (68033456).

136066906 is an equidigital number, since it uses as much as digits as its factorization.

136066906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68033455.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 136066906 is about 11664.7720080591. The cubic root of 136066906 is about 514.3406347800.

The spelling of 136066906 in words is "one hundred thirty-six million, sixty-six thousand, nine hundred six".