198225573 has 16 divisors (see below), whose sum is σ = 325293696. Its totient is φ = 104558400.

The previous prime is 198225557. The next prime is 198225631. The reversal of 198225573 is 375522891.

It is a happy number.

It is not a de Polignac number, because 198225573 - 2⁴ = 198225557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198225373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362778 + ... + 363323.

It is an arithmetic number, because the mean of its divisors is an integer number (20330856).

Almost surely, 2^198225573 is an apocalyptic number.

198225573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

198225573 is a deficient number, since it is larger than the sum of its proper divisors (127068123).

198225573 is a wasteful number, since it uses less digits than its factorization.

198225573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726124.

The product of its digits is 151200, while the sum is 42.

The square root of 198225573 is about 14079.2603854038. The cubic root of 198225573 is about 583.0689221986.

The spelling of 198225573 in words is "one hundred ninety-eight million, two hundred twenty-five thousand, five hundred seventy-three".