198196215 has 32 divisors (see below), whose sum is σ = 363211776. Its totient is φ = 90405120.

The previous prime is 198196181. The next prime is 198196279. The reversal of 198196215 is 512691891.

It is not a de Polignac number, because 198196215 - 2¹⁰ = 198195191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52894 + ... + 56516.

It is an arithmetic number, because the mean of its divisors is an integer number (11350368).

Almost surely, 2^198196215 is an apocalyptic number.

198196215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198196215 is a deficient number, since it is larger than the sum of its proper divisors (165015561).

198196215 is a wasteful number, since it uses less digits than its factorization.

198196215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159.

The product of its digits is 38880, while the sum is 42.

The square root of 198196215 is about 14078.2177494170. The cubic root of 198196215 is about 583.0401358311.

The spelling of 198196215 in words is "one hundred ninety-eight million, one hundred ninety-six thousand, two hundred fifteen".