133304505 has 8 divisors (see below), whose sum is σ = 213287232. Its totient is φ = 71095728.

The previous prime is 133304477. The next prime is 133304519. The reversal of 133304505 is 505403331.

It is a happy number.

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

It is not a de Polignac number, because 133304505 - 2¹⁰ = 133303481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4443469 + ... + 4443498.

It is an arithmetic number, because the mean of its divisors is an integer number (26660904).

Almost surely, 2^133304505 is an apocalyptic number.

133304505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133304505 is a deficient number, since it is larger than the sum of its proper divisors (79982727).

133304505 is an equidigital number, since it uses as much as digits as its factorization.

133304505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8886975.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 133304505 is about 11545.7570128597. The cubic root of 133304505 is about 510.8361332355.

Adding to 133304505 its reverse (505403331), we get a palindrome (638707836).

The spelling of 133304505 in words is "one hundred thirty-three million, three hundred four thousand, five hundred five".