136666033 has 4 divisors (see below), whose sum is σ = 156189760. Its totient is φ = 117142308.

The previous prime is 136666027. The next prime is 136666037. The reversal of 136666033 is 330666631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136666033 - 2⁹ = 136665521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136666033.

It is not an unprimeable number, because it can be changed into a prime (136666037) 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 3 ways as a sum of consecutive naturals, for example, 9761853 + ... + 9761866.

It is an arithmetic number, because the mean of its divisors is an integer number (39047440).

Almost surely, 2^136666033 is an apocalyptic number.

It is an amenable number.

136666033 is a deficient number, since it is larger than the sum of its proper divisors (19523727).

136666033 is an equidigital number, since it uses as much as digits as its factorization.

136666033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19523726.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 136666033 is about 11690.4248425795. The cubic root of 136666033 is about 515.0944408448.

The spelling of 136666033 in words is "one hundred thirty-six million, six hundred sixty-six thousand, thirty-three".