136268321 has 8 divisors (see below), whose sum is σ = 157612224. Its totient is φ = 115393680.

The previous prime is 136268317. The next prime is 136268351. The reversal of 136268321 is 123862631.

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 136268321 - 2² = 136268317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136268351) 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 7 ways as a sum of consecutive naturals, for example, 116690 + ... + 117851.

It is an arithmetic number, because the mean of its divisors is an integer number (19701528).

Almost surely, 2^136268321 is an apocalyptic number.

It is an amenable number.

136268321 is a deficient number, since it is larger than the sum of its proper divisors (21343903).

136268321 is an equidigital number, since it uses as much as digits as its factorization.

136268321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234631.

The product of its digits is 10368, while the sum is 32.

The square root of 136268321 is about 11673.4022889644. The cubic root of 136268321 is about 514.5942963733.

The spelling of 136268321 in words is "one hundred thirty-six million, two hundred sixty-eight thousand, three hundred twenty-one".