1198855 has 8 divisors (see below), whose sum is σ = 1644192. Its totient is φ = 822048.

The previous prime is 1198853. The next prime is 1198861. The reversal of 1198855 is 5588911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1198855 - 2¹ = 1198853 is a prime.

It is a super-2 number, since 2×1198855² = 2874506622050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17092 + ... + 17161.

It is an arithmetic number, because the mean of its divisors is an integer number (205524).

2^1198855 is an apocalyptic number.

1198855 is a deficient number, since it is larger than the sum of its proper divisors (445337).

1198855 is an equidigital number, since it uses as much as digits as its factorization.

1198855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34265.

The product of its digits is 14400, while the sum is 37.

The square root of 1198855 is about 1094.9223716776. The cubic root of 1198855 is about 106.2320477166.

The spelling of 1198855 in words is "one million, one hundred ninety-eight thousand, eight hundred fifty-five".