133432198 has 4 divisors (see below), whose sum is σ = 200148300. Its totient is φ = 66716098.

The previous prime is 133432183. The next prime is 133432253. The reversal of 133432198 is 891234331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891234331 = 13 ⋅68556487.

It is a super-2 number, since 2×133432198² = 35608302926222408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33358048 + ... + 33358051.

It is an arithmetic number, because the mean of its divisors is an integer number (50037075).

Almost surely, 2^133432198 is an apocalyptic number.

133432198 is a deficient number, since it is larger than the sum of its proper divisors (66716102).

133432198 is an equidigital number, since it uses as much as digits as its factorization.

133432198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66716101.

The product of its digits is 15552, while the sum is 34.

The square root of 133432198 is about 11551.2855561621. The cubic root of 133432198 is about 510.9991919442. Note that the first 3 decimals are identical.

The spelling of 133432198 in words is "one hundred thirty-three million, four hundred thirty-two thousand, one hundred ninety-eight".