133985201 has 4 divisors (see below), whose sum is σ = 153125952. Its totient is φ = 114844452.

The previous prime is 133985197. The next prime is 133985221. The reversal of 133985201 is 102589331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133985201 - 2² = 133985197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133985221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9570365 + ... + 9570378.

It is an arithmetic number, because the mean of its divisors is an integer number (38281488).

Almost surely, 2^133985201 is an apocalyptic number.

It is an amenable number.

133985201 is a deficient number, since it is larger than the sum of its proper divisors (19140751).

133985201 is an equidigital number, since it uses as much as digits as its factorization.

133985201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19140750.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 133985201 is about 11575.1976656988. The cubic root of 133985201 is about 511.7041557176.

The spelling of 133985201 in words is "one hundred thirty-three million, nine hundred eighty-five thousand, two hundred one".