198271513 has 8 divisors (see below), whose sum is σ = 217948896. Its totient is φ = 178869600.

The previous prime is 198271501. The next prime is 198271529. The reversal of 198271513 is 315172891.

It is the 5749-th star number.

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 198271513 - 2⁵ = 198271481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198271543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67356 + ... + 70237.

It is an arithmetic number, because the mean of its divisors is an integer number (27243612).

Almost surely, 2^198271513 is an apocalyptic number.

It is an amenable number.

198271513 is a deficient number, since it is larger than the sum of its proper divisors (19677383).

198271513 is a wasteful number, since it uses less digits than its factorization.

198271513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137735.

The product of its digits is 15120, while the sum is 37.

The square root of 198271513 is about 14080.8917686345. The cubic root of 198271513 is about 583.1139619932.

The spelling of 198271513 in words is "one hundred ninety-eight million, two hundred seventy-one thousand, five hundred thirteen".