1818313 has 8 divisors (see below), whose sum is σ = 2109632. Its totient is φ = 1534896.

The previous prime is 1818307. The next prime is 1818317. The reversal of 1818313 is 3138181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1818313 - 2⁹ = 1817801 is a prime.

It is a super-3 number, since 3×1818313³ = 18035458433368770891, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1818317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (263704).

2^1818313 is an apocalyptic number.

It is an amenable number.

1818313 is a deficient number, since it is larger than the sum of its proper divisors (291319).

1818313 is an equidigital number, since it uses as much as digits as its factorization.

1818313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951.

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

The square root of 1818313 is about 1348.4483675692. The cubic root of 1818313 is about 122.0551797329.

The spelling of 1818313 in words is "one million, eight hundred eighteen thousand, three hundred thirteen".