133015309 has 8 divisors (see below), whose sum is σ = 152399808. Its totient is φ = 113726400.

The previous prime is 133015307. The next prime is 133015331. The reversal of 133015309 is 903510331.

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 133015309 - 2¹ = 133015307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133015303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20887 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (19049976).

Almost surely, 2^133015309 is an apocalyptic number.

It is an amenable number.

133015309 is a deficient number, since it is larger than the sum of its proper divisors (19384499).

133015309 is an equidigital number, since it uses as much as digits as its factorization.

133015309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47795.

The product of its (nonzero) digits is 1215, while the sum is 25.

The square root of 133015309 is about 11533.2263048984. The cubic root of 133015309 is about 510.4664564893.

The spelling of 133015309 in words is "one hundred thirty-three million, fifteen thousand, three hundred nine".