18574313 has 4 divisors (see below), whose sum is σ = 18594048. Its totient is φ = 18554580.

The previous prime is 18574307. The next prime is 18574331. The reversal of 18574313 is 31347581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31347581 = 229 ⋅136889.

It is a cyclic number.

It is not a de Polignac number, because 18574313 - 2⁶ = 18574249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18574313.

It is not an unprimeable number, because it can be changed into a prime (18574393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8381 + ... + 10362.

It is an arithmetic number, because the mean of its divisors is an integer number (4648512).

Almost surely, 2^18574313 is an apocalyptic number.

It is an amenable number.

18574313 is a deficient number, since it is larger than the sum of its proper divisors (19735).

18574313 is an equidigital number, since it uses as much as digits as its factorization.

18574313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19734.

The product of its digits is 10080, while the sum is 32.

The square root of 18574313 is about 4309.7926864294. The cubic root of 18574313 is about 264.8322802489.

The spelling of 18574313 in words is "eighteen million, five hundred seventy-four thousand, three hundred thirteen".