133985199 has 4 divisors (see below), whose sum is σ = 178646936. Its totient is φ = 89323464.

The previous prime is 133985197. The next prime is 133985221. The reversal of 133985199 is 991589331.

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

It is not a de Polignac number, because 133985199 - 2¹ = 133985197 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 (133985197) 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, 22330864 + ... + 22330869.

It is an arithmetic number, because the mean of its divisors is an integer number (44661734).

Almost surely, 2^133985199 is an apocalyptic number.

133985199 is a deficient number, since it is larger than the sum of its proper divisors (44661737).

133985199 is an equidigital number, since it uses as much as digits as its factorization.

133985199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44661736.

The product of its digits is 262440, while the sum is 48.

The square root of 133985199 is about 11575.1975793072. The cubic root of 133985199 is about 511.7041531715.

The spelling of 133985199 in words is "one hundred thirty-three million, nine hundred eighty-five thousand, one hundred ninety-nine".