1118266 has 4 divisors (see below), whose sum is σ = 1677402. Its totient is φ = 559132.

The previous prime is 1118261. The next prime is 1118267. The reversal of 1118266 is 6628111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6628111 = 7 ⋅946873.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 108241 = 1005^2 + 329^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1118266.

It is not an unprimeable number, because it can be changed into a prime (1118261) 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, 279565 + ... + 279568.

2^1118266 is an apocalyptic number.

1118266 is a deficient number, since it is larger than the sum of its proper divisors (559136).

1118266 is an equidigital number, since it uses as much as digits as its factorization.

1118266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559135.

The product of its digits is 576, while the sum is 25.

The square root of 1118266 is about 1057.4809690959. The cubic root of 1118266 is about 103.7962603979.

The spelling of 1118266 in words is "one million, one hundred eighteen thousand, two hundred sixty-six".