136335521 has 8 divisors (see below), whose sum is σ = 155884800. Its totient is φ = 116804448.

The previous prime is 136335487. The next prime is 136335527. The reversal of 136335521 is 125533631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136335521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136335527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21320 + ... + 26966.

It is an arithmetic number, because the mean of its divisors is an integer number (19485600).

Almost surely, 2^136335521 is an apocalyptic number.

It is an amenable number.

136335521 is a deficient number, since it is larger than the sum of its proper divisors (19549279).

136335521 is an equidigital number, since it uses as much as digits as its factorization.

136335521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9103.

The product of its digits is 8100, while the sum is 29.

The square root of 136335521 is about 11676.2802724155. The cubic root of 136335521 is about 514.6788722884.

The spelling of 136335521 in words is "one hundred thirty-six million, three hundred thirty-five thousand, five hundred twenty-one".