1099227 has 4 divisors (see below), whose sum is σ = 1465640. Its totient is φ = 732816.

The previous prime is 1099223. The next prime is 1099247. The reversal of 1099227 is 7229901.

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

It is not a de Polignac number, because 1099227 - 2² = 1099223 is a prime.

It is a D-number.

It is a Duffinian number.

1099227 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1099194 and 1099203.

It is not an unprimeable number, because it can be changed into a prime (1099223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183202 + ... + 183207.

It is an arithmetic number, because the mean of its divisors is an integer number (366410).

2^1099227 is an apocalyptic number.

1099227 is a deficient number, since it is larger than the sum of its proper divisors (366413).

1099227 is an equidigital number, since it uses as much as digits as its factorization.

1099227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366412.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1099227 is about 1048.4402701156. The cubic root of 1099227 is about 103.2038254997.

It can be divided in two parts, 1099 and 227, that added together give a triangular number (1326 = T₅₁).

The spelling of 1099227 in words is "one million, ninety-nine thousand, two hundred twenty-seven".