198481529 has 2 divisors, whose sum is σ = 198481530. Its totient is φ = 198481528.

The previous prime is 198481519. The next prime is 198481553. The reversal of 198481529 is 925184891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135675904 + 62805625 = 11648^2 + 7925^2 .

It is an emirp because it is prime and its reverse (925184891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198481529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198481519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99240764 + 99240765.

It is an arithmetic number, because the mean of its divisors is an integer number (99240765).

Almost surely, 2^198481529 is an apocalyptic number.

It is an amenable number.

198481529 is a deficient number, since it is larger than the sum of its proper divisors (1).

198481529 is an equidigital number, since it uses as much as digits as its factorization.

198481529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 47.

The square root of 198481529 is about 14088.3472770939. The cubic root of 198481529 is about 583.3197741247.

The spelling of 198481529 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, five hundred twenty-nine".