18127413 has 6 divisors (see below), whose sum is σ = 26184054. Its totient is φ = 12084936.

The previous prime is 18127397. The next prime is 18127441. The reversal of 18127413 is 31472181.

It can be written as a sum of positive squares in only one way, i.e., 13704804 + 4422609 = 3702^2 + 2103^2 .

It is not a de Polignac number, because 18127413 - 2⁴ = 18127397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18127493) 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 in 5 ways as a sum of consecutive naturals, for example, 1007070 + ... + 1007087.

It is an arithmetic number, because the mean of its divisors is an integer number (4364009).

Almost surely, 2^18127413 is an apocalyptic number.

It is an amenable number.

18127413 is a deficient number, since it is larger than the sum of its proper divisors (8056641).

18127413 is a wasteful number, since it uses less digits than its factorization.

18127413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014163 (or 2014160 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 18127413 is about 4257.6299745281. The cubic root of 18127413 is about 262.6910500339.

Adding to 18127413 its reverse (31472181), we get a palindrome (49599594).

The spelling of 18127413 in words is "eighteen million, one hundred twenty-seven thousand, four hundred thirteen".