18000601 has 2 divisors, whose sum is σ = 18000602. Its totient is φ = 18000600.

The previous prime is 18000583. The next prime is 18000613. The reversal of 18000601 is 10600081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 5645376 = 3515^2 + 2376^2 .It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 10900081 and 18000901.

It is a cyclic number.

It is not a de Polignac number, because 18000601 - 2⁷ = 18000473 is a prime.

It is a super-2 number, since 2×18000601² = 648043272722402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18000401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000300 + 9000301.

It is an arithmetic number, because the mean of its divisors is an integer number (9000301).

Almost surely, 2^18000601 is an apocalyptic number.

It is an amenable number.

18000601 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000601 is an equidigital number, since it uses as much as digits as its factorization.

18000601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 18000601 is about 4242.7115150573. The cubic root of 18000601 is about 262.0770561765.

Adding to 18000601 its reverse (10600081), we get a palindrome (28600682).

The spelling of 18000601 in words is "eighteen million, six hundred one", and thus it is an aban number.