133211198 has 4 divisors (see below), whose sum is σ = 199816800. Its totient is φ = 66605598.

The previous prime is 133211179. The next prime is 133211219. The reversal of 133211198 is 891112331.

133211198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891112331 = 19 ⋅46900649.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133211198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33302798 + ... + 33302801.

It is an arithmetic number, because the mean of its divisors is an integer number (49954200).

Almost surely, 2^133211198 is an apocalyptic number.

133211198 is a deficient number, since it is larger than the sum of its proper divisors (66605602).

133211198 is an equidigital number, since it uses as much as digits as its factorization.

133211198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66605601.

The product of its digits is 1296, while the sum is 29.

The square root of 133211198 is about 11541.7155570565. The cubic root of 133211198 is about 510.7169181787.

The spelling of 133211198 in words is "one hundred thirty-three million, two hundred eleven thousand, one hundred ninety-eight".