133265563 has 8 divisors (see below), whose sum is σ = 140428800. Its totient is φ = 126117288.

The previous prime is 133265543. The next prime is 133265579. The reversal of 133265563 is 365562331.

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

It is a de Polignac number, because none of the positive numbers 2^k-133265563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133265543) 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, 17778 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (17553600).

Almost surely, 2^133265563 is an apocalyptic number.

133265563 is a deficient number, since it is larger than the sum of its proper divisors (7163237).

133265563 is a wasteful number, since it uses less digits than its factorization.

133265563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481.

The product of its digits is 48600, while the sum is 34.

The square root of 133265563 is about 11544.0704692929. The cubic root of 133265563 is about 510.7863851841.

The spelling of 133265563 in words is "one hundred thirty-three million, two hundred sixty-five thousand, five hundred sixty-three".