136551009 has 16 divisors (see below), whose sum is σ = 210418560. Its totient is φ = 77151360.

The previous prime is 136551007. The next prime is 136551011. The reversal of 136551009 is 900155631.

It is an interprime number because it is at equal distance from previous prime (136551007) and next prime (136551011).

It is not a de Polignac number, because 136551009 - 2¹ = 136551007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136551007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34662 + ... + 38399.

It is an arithmetic number, because the mean of its divisors is an integer number (13151160).

Almost surely, 2^136551009 is an apocalyptic number.

It is an amenable number.

136551009 is a deficient number, since it is larger than the sum of its proper divisors (73867551).

136551009 is an equidigital number, since it uses as much as digits as its factorization.

136551009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73160.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 136551009 is about 11685.5042253212. The cubic root of 136551009 is about 514.9498917534.

The spelling of 136551009 in words is "one hundred thirty-six million, five hundred fifty-one thousand, nine".