1127198 has 4 divisors (see below), whose sum is σ = 1690800. Its totient is φ = 563598.

The previous prime is 1127197. The next prime is 1127209. The reversal of 1127198 is 8917211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8917211 = 43 ⋅207377.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1127198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281798 + ... + 281801.

It is an arithmetic number, because the mean of its divisors is an integer number (422700).

2^1127198 is an apocalyptic number.

1127198 is a deficient number, since it is larger than the sum of its proper divisors (563602).

1127198 is an equidigital number, since it uses as much as digits as its factorization.

1127198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563601.

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

The square root of 1127198 is about 1061.6958133100. The cubic root of 1127198 is about 104.0718807807.

The spelling of 1127198 in words is "one million, one hundred twenty-seven thousand, one hundred ninety-eight".