133242199 has 4 divisors (see below), whose sum is σ = 133297936. Its totient is φ = 133186464.

The previous prime is 133242191. The next prime is 133242223. The reversal of 133242199 is 991242331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991242331 = 19 ⋅52170649.

It is a cyclic number.

It is not a de Polignac number, because 133242199 - 2³ = 133242191 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 (133242191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24114 + ... + 29119.

It is an arithmetic number, because the mean of its divisors is an integer number (33324484).

Almost surely, 2^133242199 is an apocalyptic number.

133242199 is a deficient number, since it is larger than the sum of its proper divisors (55737).

133242199 is an equidigital number, since it uses as much as digits as its factorization.

133242199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55736.

The product of its digits is 11664, while the sum is 34.

The square root of 133242199 is about 11543.0584768509. The cubic root of 133242199 is about 510.7565332346.

The spelling of 133242199 in words is "one hundred thirty-three million, two hundred forty-two thousand, one hundred ninety-nine".