1013218 has 4 divisors (see below), whose sum is σ = 1519830. Its totient is φ = 506608.

The previous prime is 1013203. The next prime is 1013227. The reversal of 1013218 is 8123101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8123101 = 7 ⋅1160443.

It can be written as a sum of positive squares in only one way, i.e., 927369 + 85849 = 963^2 + 293^2 .

It is a super-2 number, since 2×1013218² = 2053221431048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253303 + ... + 253306.

2^1013218 is an apocalyptic number.

1013218 is a deficient number, since it is larger than the sum of its proper divisors (506612).

1013218 is an equidigital number, since it uses as much as digits as its factorization.

1013218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506611.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1013218 is about 1006.5873037149. The cubic root of 1013218 is about 100.4386728475.

Adding to 1013218 its reverse (8123101), we get a palindrome (9136319).

The spelling of 1013218 in words is "one million, thirteen thousand, two hundred eighteen".