198770231 has 8 divisors (see below), whose sum is σ = 216944400. Its totient is φ = 180613440.

The previous prime is 198770227. The next prime is 198770237. The reversal of 198770231 is 132077891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198770231 - 2² = 198770227 is a prime.

It is a super-2 number, since 2×198770231² = 79019209463586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198770237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35555 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (27118050).

Almost surely, 2^198770231 is an apocalyptic number.

198770231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

198770231 is a deficient number, since it is larger than the sum of its proper divisors (18174169).

198770231 is a wasteful number, since it uses less digits than its factorization.

198770231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8689.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 198770231 is about 14098.5896812412. The cubic root of 198770231 is about 583.6024603786.

The spelling of 198770231 in words is "one hundred ninety-eight million, seven hundred seventy thousand, two hundred thirty-one".