198529453 has 2 divisors, whose sum is σ = 198529454. Its totient is φ = 198529452.

The previous prime is 198529393. The next prime is 198529459. The reversal of 198529453 is 354925891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128187684 + 70341769 = 11322^2 + 8387^2 .

It is an emirp because it is prime and its reverse (354925891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198529453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198529459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99264726 + 99264727.

It is an arithmetic number, because the mean of its divisors is an integer number (99264727).

Almost surely, 2^198529453 is an apocalyptic number.

It is an amenable number.

198529453 is a deficient number, since it is larger than the sum of its proper divisors (1).

198529453 is an equidigital number, since it uses as much as digits as its factorization.

198529453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 198529453 is about 14090.0480126932. The cubic root of 198529453 is about 583.3667184884.

The spelling of 198529453 in words is "one hundred ninety-eight million, five hundred twenty-nine thousand, four hundred fifty-three".