18349063 has 2 divisors, whose sum is σ = 18349064. Its totient is φ = 18349062.

The previous prime is 18349049. The next prime is 18349081. The reversal of 18349063 is 36094381.

It is a weak prime.

It is an emirp because it is prime and its reverse (36094381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18349063 - 2⁵ = 18349031 is a prime.

It is a super-2 number, since 2×18349063² = 673376225955938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18349043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9174531 + 9174532.

It is an arithmetic number, because the mean of its divisors is an integer number (9174532).

Almost surely, 2^18349063 is an apocalyptic number.

18349063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18349063 is an equidigital number, since it uses as much as digits as its factorization.

18349063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 18349063 is about 4283.5806283996. The cubic root of 18349063 is about 263.7573863448.

The spelling of 18349063 in words is "eighteen million, three hundred forty-nine thousand, sixty-three".