1228299 has 4 divisors (see below), whose sum is σ = 1637736. Its totient is φ = 818864.

The previous prime is 1228291. The next prime is 1228303. The reversal of 1228299 is 9928221.

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 1228299 - 2³ = 1228291 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1228291) 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, 204714 + ... + 204719.

It is an arithmetic number, because the mean of its divisors is an integer number (409434).

2^1228299 is an apocalyptic number.

1228299 is a deficient number, since it is larger than the sum of its proper divisors (409437).

1228299 is an equidigital number, since it uses as much as digits as its factorization.

1228299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409436.

The product of its digits is 5184, while the sum is 33.

The square root of 1228299 is about 1108.2865153019. The cubic root of 1228299 is about 107.0947133543.

The spelling of 1228299 in words is "one million, two hundred twenty-eight thousand, two hundred ninety-nine".