198463511 has 2 divisors, whose sum is σ = 198463512. Its totient is φ = 198463510.

The previous prime is 198463471. The next prime is 198463549. The reversal of 198463511 is 115364891.

It is an a-pointer prime, because the next prime (198463549) can be obtained adding 198463511 to its sum of digits (38).

It is a strong prime.

It is an emirp because it is prime and its reverse (115364891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198463511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198463571) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99231755 + 99231756.

It is an arithmetic number, because the mean of its divisors is an integer number (99231756).

Almost surely, 2^198463511 is an apocalyptic number.

198463511 is a deficient number, since it is larger than the sum of its proper divisors (1).

198463511 is an equidigital number, since it uses as much as digits as its factorization.

198463511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 198463511 is about 14087.7077979350. The cubic root of 198463511 is about 583.3021224843.

The spelling of 198463511 in words is "one hundred ninety-eight million, four hundred sixty-three thousand, five hundred eleven".