135353330521 has 8 divisors (see below), whose sum is σ = 137415145280. Its totient is φ = 133292739888.

The previous prime is 135353330503. The next prime is 135353330537. The reversal of 135353330521 is 125033353531.

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 135353330521 - 2⁹ = 135353330009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135353334521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81966 + ... + 526711.

It is an arithmetic number, because the mean of its divisors is an integer number (17176893160).

Almost surely, 2^135353330521 is an apocalyptic number.

It is an amenable number.

135353330521 is a deficient number, since it is larger than the sum of its proper divisors (2061814759).

135353330521 is an equidigital number, since it uses as much as digits as its factorization.

135353330521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612063.

The product of its (nonzero) digits is 60750, while the sum is 34.

The spelling of 135353330521 in words is "one hundred thirty-five billion, three hundred fifty-three million, three hundred thirty thousand, five hundred twenty-one".