198925115 has 8 divisors (see below), whose sum is σ = 238789728. Its totient is φ = 159087040.

The previous prime is 198925099. The next prime is 198925127. The reversal of 198925115 is 511529891.

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

It is not a de Polignac number, because 198925115 - 2⁴ = 198925099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 18575 + ... + 27255.

It is an arithmetic number, because the mean of its divisors is an integer number (29848716).

Almost surely, 2^198925115 is an apocalyptic number.

198925115 is a deficient number, since it is larger than the sum of its proper divisors (39864613).

198925115 is an equidigital number, since it uses as much as digits as its factorization.

198925115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269.

The product of its digits is 32400, while the sum is 41.

The square root of 198925115 is about 14104.0815014662. The cubic root of 198925115 is about 583.7540042246.

The spelling of 198925115 in words is "one hundred ninety-eight million, nine hundred twenty-five thousand, one hundred fifteen".