133552505 has 8 divisors (see below), whose sum is σ = 160326600. Its totient is φ = 106799616.

The previous prime is 133552487. The next prime is 133552519. The reversal of 133552505 is 505255331.

It can be written as a sum of positive squares in 4 ways, for example, as 657721 + 132894784 = 811^2 + 11528^2 .

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-133552505 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17411 + ... + 23879.

It is an arithmetic number, because the mean of its divisors is an integer number (20040825).

Almost surely, 2^133552505 is an apocalyptic number.

It is an amenable number.

133552505 is a deficient number, since it is larger than the sum of its proper divisors (26774095).

133552505 is an equidigital number, since it uses as much as digits as its factorization.

133552505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10603.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 133552505 is about 11556.4918984958. The cubic root of 133552505 is about 511.1527238839.

The spelling of 133552505 in words is "one hundred thirty-three million, five hundred fifty-two thousand, five hundred five".