18073313 has 8 divisors (see below), whose sum is σ = 19108320. Its totient is φ = 17046720.

The previous prime is 18073309. The next prime is 18073327. The reversal of 18073313 is 31337081.

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 18073313 - 2² = 18073309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18073343) 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, 2606 + ... + 6552.

It is an arithmetic number, because the mean of its divisors is an integer number (2388540).

Almost surely, 2^18073313 is an apocalyptic number.

It is an amenable number.

18073313 is a deficient number, since it is larger than the sum of its proper divisors (1035007).

18073313 is a wasteful number, since it uses less digits than its factorization.

18073313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 18073313 is about 4251.2719273178. The cubic root of 18073313 is about 262.4294619237.

The spelling of 18073313 in words is "eighteen million, seventy-three thousand, three hundred thirteen".