1115299 has 2 divisors, whose sum is σ = 1115300. Its totient is φ = 1115298.

The previous prime is 1115297. The next prime is 1115321. The reversal of 1115299 is 9925111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115299 - 2¹ = 1115297 is a prime.

Together with 1115297, it forms a pair of twin primes.

1115299 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1115297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557649 + 557650.

It is an arithmetic number, because the mean of its divisors is an integer number (557650).

2^1115299 is an apocalyptic number.

1115299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115299 is an equidigital number, since it uses as much as digits as its factorization.

1115299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 28.

The square root of 1115299 is about 1056.0771752102. The cubic root of 1115299 is about 103.7043811637.

Subtracting from 1115299 its sum of digits (28), we obtain a triangular number (1115271 = T₁₄₉₃).

The spelling of 1115299 in words is "one million, one hundred fifteen thousand, two hundred ninety-nine".