136484321 has 4 divisors (see below), whose sum is σ = 136531200. Its totient is φ = 136437444.

The previous prime is 136484303. The next prime is 136484329. The reversal of 136484321 is 123484631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123484631 = 23 ⋅5368897.

It is a cyclic number.

It is not a de Polignac number, because 136484321 - 2²² = 132290017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136484329) 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 3 ways as a sum of consecutive naturals, for example, 18761 + ... + 24998.

It is an arithmetic number, because the mean of its divisors is an integer number (34132800).

Almost surely, 2^136484321 is an apocalyptic number.

It is an amenable number.

136484321 is a deficient number, since it is larger than the sum of its proper divisors (46879).

136484321 is an equidigital number, since it uses as much as digits as its factorization.

136484321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46878.

The product of its digits is 13824, while the sum is 32.

The square root of 136484321 is about 11682.6504270221. The cubic root of 136484321 is about 514.8660486763.

The spelling of 136484321 in words is "one hundred thirty-six million, four hundred eighty-four thousand, three hundred twenty-one".