1198205 has 4 divisors (see below), whose sum is σ = 1437852. Its totient is φ = 958560.

The previous prime is 1198201. The next prime is 1198217. The reversal of 1198205 is 5028911.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 470596 + 727609 = 686^2 + 853^2 .

It is not a de Polignac number, because 1198205 - 2² = 1198201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119816 + ... + 119825.

It is an arithmetic number, because the mean of its divisors is an integer number (359463).

2^1198205 is an apocalyptic number.

It is an amenable number.

1198205 is a deficient number, since it is larger than the sum of its proper divisors (239647).

1198205 is an equidigital number, since it uses as much as digits as its factorization.

1198205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239646.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1198205 is about 1094.6255067373. The cubic root of 1198205 is about 106.2128451402.

The spelling of 1198205 in words is "one million, one hundred ninety-eight thousand, two hundred five".