133975663 has 4 divisors (see below), whose sum is σ = 135227880. Its totient is φ = 132723448.

The previous prime is 133975643. The next prime is 133975687. The reversal of 133975663 is 366579331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133975663 - 2⁹ = 133975151 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 (133975643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 625948 + ... + 626161.

It is an arithmetic number, because the mean of its divisors is an integer number (33806970).

Almost surely, 2^133975663 is an apocalyptic number.

133975663 is a deficient number, since it is larger than the sum of its proper divisors (1252217).

133975663 is a wasteful number, since it uses less digits than its factorization.

133975663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252216.

The product of its digits is 306180, while the sum is 43.

The square root of 133975663 is about 11574.7856567627. The cubic root of 133975663 is about 511.6920132073.

The spelling of 133975663 in words is "one hundred thirty-three million, nine hundred seventy-five thousand, six hundred sixty-three".