133403198 has 4 divisors (see below), whose sum is σ = 200104800. Its totient is φ = 66701598.

The previous prime is 133403183. The next prime is 133403201. The reversal of 133403198 is 891304331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891304331 = 269 ⋅3313399.

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 as a sum of consecutive naturals, namely, 33350798 + ... + 33350801.

It is an arithmetic number, because the mean of its divisors is an integer number (50026200).

Almost surely, 2^133403198 is an apocalyptic number.

133403198 is a deficient number, since it is larger than the sum of its proper divisors (66701602).

133403198 is an equidigital number, since it uses as much as digits as its factorization.

133403198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66701601.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 133403198 is about 11550.0302164107. The cubic root of 133403198 is about 510.9621692703.

The spelling of 133403198 in words is "one hundred thirty-three million, four hundred three thousand, one hundred ninety-eight".