198463549 has 2 divisors, whose sum is σ = 198463550. Its totient is φ = 198463548.

The previous prime is 198463511. The next prime is 198463553. The reversal of 198463549 is 945364891.

It is a happy number.

198463549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182061049 + 16402500 = 13493^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 198463549 - 2¹³ = 198455357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198473549) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99231774 + 99231775.

It is an arithmetic number, because the mean of its divisors is an integer number (99231775).

Almost surely, 2^198463549 is an apocalyptic number.

It is an amenable number.

198463549 is a deficient number, since it is larger than the sum of its proper divisors (1).

198463549 is an equidigital number, since it uses as much as digits as its factorization.

198463549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 198463549 is about 14087.7091466285. The cubic root of 198463549 is about 583.3021597128.

The spelling of 198463549 in words is "one hundred ninety-eight million, four hundred sixty-three thousand, five hundred forty-nine".