133193875 has 16 divisors (see below), whose sum is σ = 166686624. Its totient is φ = 106260000.

The previous prime is 133193869. The next prime is 133193881. The reversal of 133193875 is 578391331.

It is an interprime number because it is at equal distance from previous prime (133193869) and next prime (133193881).

It is not a de Polignac number, because 133193875 - 2¹⁷ = 133062803 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51360 + ... + 53890.

It is an arithmetic number, because the mean of its divisors is an integer number (10417914).

Almost surely, 2^133193875 is an apocalyptic number.

133193875 is a deficient number, since it is larger than the sum of its proper divisors (33492749).

133193875 is an equidigital number, since it uses as much as digits as its factorization.

133193875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2957 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 133193875 is about 11540.9650809627. The cubic root of 133193875 is about 510.6947790672.

The spelling of 133193875 in words is "one hundred thirty-three million, one hundred ninety-three thousand, eight hundred seventy-five".