1111199 has 4 divisors (see below), whose sum is σ = 1159536. Its totient is φ = 1062864.

The previous prime is 1111189. The next prime is 1111211. The reversal of 1111199 is 9911111.

It is a happy number.

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 1111199 - 2⁴ = 1111183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 48313 = 1111199 / (1 + 1 + 1 + 1 + 1 + 9 + 9).

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111169) 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, 24134 + ... + 24179.

It is an arithmetic number, because the mean of its divisors is an integer number (289884).

2^1111199 is an apocalyptic number.

1111199 is a deficient number, since it is larger than the sum of its proper divisors (48337).

1111199 is an equidigital number, since it uses as much as digits as its factorization.

1111199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48336.

The product of its digits is 81, while the sum is 23.

The square root of 1111199 is about 1054.1342419256. The cubic root of 1111199 is about 103.5771477053.

The spelling of 1111199 in words is "one million, one hundred eleven thousand, one hundred ninety-nine".