133208975 has 6 divisors (see below), whose sum is σ = 165179160. Its totient is φ = 106567160.

The previous prime is 133208947. The next prime is 133209007. The reversal of 133208975 is 579802331.

It is a de Polignac number, because none of the positive numbers 2^k-133208975 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2664155 + ... + 2664204.

It is an arithmetic number, because the mean of its divisors is an integer number (27529860).

Almost surely, 2^133208975 is an apocalyptic number.

133208975 is a deficient number, since it is larger than the sum of its proper divisors (31970185).

133208975 is an equidigital number, since it uses as much as digits as its factorization.

133208975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328369 (or 5328364 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 133208975 is about 11541.6192538136. The cubic root of 133208975 is about 510.7140772513.

The spelling of 133208975 in words is "one hundred thirty-three million, two hundred eight thousand, nine hundred seventy-five".