198130785 has 8 divisors (see below), whose sum is σ = 317009280. Its totient is φ = 105669744.

The previous prime is 198130783. The next prime is 198130789. The reversal of 198130785 is 587031891.

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

It is not a de Polignac number, because 198130785 - 2¹ = 198130783 is a prime.

It is a super-3 number, since 3×198130785³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (198130783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6604345 + ... + 6604374.

It is an arithmetic number, because the mean of its divisors is an integer number (39626160).

Almost surely, 2^198130785 is an apocalyptic number.

198130785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198130785 is a deficient number, since it is larger than the sum of its proper divisors (118878495).

198130785 is a wasteful number, since it uses less digits than its factorization.

198130785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13208727.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 198130785 is about 14075.8937549273. The cubic root of 198130785 is about 582.9759695960.

The spelling of 198130785 in words is "one hundred ninety-eight million, one hundred thirty thousand, seven hundred eighty-five".