1018313 has 2 divisors, whose sum is σ = 1018314. Its totient is φ = 1018312.

The previous prime is 1018309. The next prime is 1018337. The reversal of 1018313 is 3138101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 299209 = 848^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018313 - 2² = 1018309 is a prime.

It is a super-2 number, since 2×1018313² = 2073922731938, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1018291 and 1018300.

It is not a weakly prime, because it can be changed into another prime (1018513) 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 as a sum of consecutive naturals, namely, 509156 + 509157.

It is an arithmetic number, because the mean of its divisors is an integer number (509157).

2^1018313 is an apocalyptic number.

It is an amenable number.

1018313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018313 is an equidigital number, since it uses as much as digits as its factorization.

1018313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1018313 is about 1009.1149587634. The cubic root of 1018313 is about 100.6067444989.

It can be divided in two parts, 1018 and 313, that added together give a palindrome (1331).

The spelling of 1018313 in words is "one million, eighteen thousand, three hundred thirteen".