1145218 has 4 divisors (see below), whose sum is σ = 1717830. Its totient is φ = 572608.

The previous prime is 1145213. The next prime is 1145227. The reversal of 1145218 is 8125411.

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

It can be written as a sum of positive squares in only one way, i.e., 966289 + 178929 = 983^2 + 423^2 .

It is not an unprimeable number, because it can be changed into a prime (1145213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286303 + ... + 286306.

2^1145218 is an apocalyptic number.

1145218 is a deficient number, since it is larger than the sum of its proper divisors (572612).

1145218 is an equidigital number, since it uses as much as digits as its factorization.

1145218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572611.

The product of its digits is 320, while the sum is 22.

The square root of 1145218 is about 1070.1485878139. The cubic root of 1145218 is about 104.6235346825.

The spelling of 1145218 in words is "one million, one hundred forty-five thousand, two hundred eighteen".