1198127 has 4 divisors (see below), whose sum is σ = 1369296. Its totient is φ = 1026960.

The previous prime is 1198123. The next prime is 1198133. The reversal of 1198127 is 7218911.

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

It is a cyclic number.

It is not a de Polignac number, because 1198127 - 2² = 1198123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1198127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198123) 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, 85574 + ... + 85587.

It is an arithmetic number, because the mean of its divisors is an integer number (342324).

2^1198127 is an apocalyptic number.

1198127 is a deficient number, since it is larger than the sum of its proper divisors (171169).

1198127 is an equidigital number, since it uses as much as digits as its factorization.

1198127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171168.

The product of its digits is 1008, while the sum is 29.

The square root of 1198127 is about 1094.5898775340. The cubic root of 1198127 is about 106.2105403644.

The spelling of 1198127 in words is "one million, one hundred ninety-eight thousand, one hundred twenty-seven".