136232009 has 8 divisors (see below), whose sum is σ = 138501792. Its totient is φ = 133981120.

The previous prime is 136231993. The next prime is 136232021. The reversal of 136232009 is 900232631.

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 136232009 - 2⁴ = 136231993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136232029) 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, 10202 + ... + 19404.

It is an arithmetic number, because the mean of its divisors is an integer number (17312724).

Almost surely, 2^136232009 is an apocalyptic number.

It is an amenable number.

136232009 is a deficient number, since it is larger than the sum of its proper divisors (2269783).

136232009 is a wasteful number, since it uses less digits than its factorization.

136232009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9447.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 136232009 is about 11671.8468547184. The cubic root of 136232009 is about 514.5485836012.

The spelling of 136232009 in words is "one hundred thirty-six million, two hundred thirty-two thousand, nine".