18276113 has 8 divisors (see below), whose sum is σ = 18880680. Its totient is φ = 17677440.

The previous prime is 18276109. The next prime is 18276121. The reversal of 18276113 is 31167281.

It can be written as a sum of positive squares in 4 ways, for example, as 5438224 + 12837889 = 2332^2 + 3583^2 .

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 18276113 - 2² = 18276109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18276913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5333 + ... + 8061.

It is an arithmetic number, because the mean of its divisors is an integer number (2360085).

Almost surely, 2^18276113 is an apocalyptic number.

It is an amenable number.

18276113 is a deficient number, since it is larger than the sum of its proper divisors (604567).

18276113 is a wasteful number, since it uses less digits than its factorization.

18276113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947.

The product of its digits is 2016, while the sum is 29.

The square root of 18276113 is about 4275.0570756424. The cubic root of 18276113 is about 263.4073837929.

The spelling of 18276113 in words is "eighteen million, two hundred seventy-six thousand, one hundred thirteen".