198825001 has 2 divisors, whose sum is σ = 198825002. Its totient is φ = 198825000.

The previous prime is 198824981. The next prime is 198825017. The reversal of 198825001 is 100528891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 65999376 = 11525^2 + 8124^2 .

It is a cyclic number.

It is not a de Polignac number, because 198825001 - 2¹⁵ = 198792233 is a prime.

It is not a weakly prime, because it can be changed into another prime (198825091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99412500 + 99412501.

It is an arithmetic number, because the mean of its divisors is an integer number (99412501).

Almost surely, 2^198825001 is an apocalyptic number.

It is an amenable number.

198825001 is a deficient number, since it is larger than the sum of its proper divisors (1).

198825001 is an equidigital number, since it uses as much as digits as its factorization.

198825001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 198825001 is about 14100.5319403205. The cubic root of 198825001 is about 583.6560582291.

The spelling of 198825001 in words is "one hundred ninety-eight million, eight hundred twenty-five thousand, one".