198125573 has 2 divisors, whose sum is σ = 198125574. Its totient is φ = 198125572.

The previous prime is 198125567. The next prime is 198125591. The reversal of 198125573 is 375521891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197767969 + 357604 = 14063^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 198125573 - 2⁶ = 198125509 is a prime.

It is a super-3 number, since 3×198125573³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198125573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198125563) 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 as a sum of consecutive naturals, namely, 99062786 + 99062787.

It is an arithmetic number, because the mean of its divisors is an integer number (99062787).

Almost surely, 2^198125573 is an apocalyptic number.

It is an amenable number.

198125573 is a deficient number, since it is larger than the sum of its proper divisors (1).

198125573 is an equidigital number, since it uses as much as digits as its factorization.

198125573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 41.

The square root of 198125573 is about 14075.7086144890. The cubic root of 198125573 is about 582.9708576571.

The spelling of 198125573 in words is "one hundred ninety-eight million, one hundred twenty-five thousand, five hundred seventy-three".