18146313 has 12 divisors (see below), whose sum is σ = 26851188. Its totient is φ = 11802240.

The previous prime is 18146309. The next prime is 18146321. The reversal of 18146313 is 31364181.

18146313 is a `hidden beast` number, since 18 + 14 + 631 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 16064064 = 1443^2 + 4008^2 .

It is not a de Polignac number, because 18146313 - 2² = 18146309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18146353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24220 + ... + 24957.

It is an arithmetic number, because the mean of its divisors is an integer number (2237599).

Almost surely, 2^18146313 is an apocalyptic number.

It is an amenable number.

18146313 is a deficient number, since it is larger than the sum of its proper divisors (8704875).

18146313 is a wasteful number, since it uses less digits than its factorization.

18146313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49224 (or 49221 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 18146313 is about 4259.8489409837. The cubic root of 18146313 is about 262.7823139547.

It can be divided in two parts, 181463 and 13, that added together give a square (181476 = 426²).

The spelling of 18146313 in words is "eighteen million, one hundred forty-six thousand, three hundred thirteen".