198612255 has 8 divisors (see below), whose sum is σ = 317779632. Its totient is φ = 105926528.

The previous prime is 198612251. The next prime is 198612259. The reversal of 198612255 is 552216891.

It is an interprime number because it is at equal distance from previous prime (198612251) and next prime (198612259).

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 198612255 - 2² = 198612251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198612251) 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 7 ways as a sum of consecutive naturals, for example, 6620394 + ... + 6620423.

It is an arithmetic number, because the mean of its divisors is an integer number (39722454).

Almost surely, 2^198612255 is an apocalyptic number.

198612255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198612255 is a deficient number, since it is larger than the sum of its proper divisors (119167377).

198612255 is a wasteful number, since it uses less digits than its factorization.

198612255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240825.

The product of its digits is 43200, while the sum is 39.

The square root of 198612255 is about 14092.9860214221. The cubic root of 198612255 is about 583.4478100953.

It can be divided in two parts, 1986 and 12255, that added together give a palindrome (14241).

The spelling of 198612255 in words is "one hundred ninety-eight million, six hundred twelve thousand, two hundred fifty-five".