198481229 has 2 divisors, whose sum is σ = 198481230. Its totient is φ = 198481228.

The previous prime is 198481219. The next prime is 198481267. The reversal of 198481229 is 922184891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130005604 + 68475625 = 11402^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 198481229 - 2²⁴ = 181704013 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198481229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198481219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99240614 + 99240615.

It is an arithmetic number, because the mean of its divisors is an integer number (99240615).

Almost surely, 2^198481229 is an apocalyptic number.

It is an amenable number.

198481229 is a deficient number, since it is larger than the sum of its proper divisors (1).

198481229 is an equidigital number, since it uses as much as digits as its factorization.

198481229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 44.

The square root of 198481229 is about 14088.3366299929. The cubic root of 198481229 is about 583.3194802334.

The spelling of 198481229 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, two hundred twenty-nine".