18106361 has 8 divisors (see below), whose sum is σ = 22284864. Its totient is φ = 14325840.

The previous prime is 18106351. The next prime is 18106423. The reversal of 18106361 is 16360181.

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 18106361 - 2¹⁰ = 18105337 is a prime.

It is a super-3 number, since 3×18106361³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18106361.

It is not an unprimeable number, because it can be changed into a prime (18106301) 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, 99395 + ... + 99576.

It is an arithmetic number, because the mean of its divisors is an integer number (2785608).

Almost surely, 2^18106361 is an apocalyptic number.

It is an amenable number.

18106361 is a deficient number, since it is larger than the sum of its proper divisors (4178503).

18106361 is a wasteful number, since it uses less digits than its factorization.

18106361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198991.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18106361 is about 4255.1569888783. The cubic root of 18106361 is about 262.5893198686.

The spelling of 18106361 in words is "eighteen million, one hundred six thousand, three hundred sixty-one".