18100601 has 2 divisors, whose sum is σ = 18100602. Its totient is φ = 18100600.

The previous prime is 18100583. The next prime is 18100603. The reversal of 18100601 is 10600181.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16410601 + 1690000 = 4051^2 + 1300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18100601 is a prime.

It is a super-2 number, since 2×18100601² = 655263513122402, which contains 22 as substring.

Together with 18100603, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18100601.

It is not a weakly prime, because it can be changed into another prime (18100603) 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 as a sum of consecutive naturals, namely, 9050300 + 9050301.

It is an arithmetic number, because the mean of its divisors is an integer number (9050301).

Almost surely, 2^18100601 is an apocalyptic number.

It is an amenable number.

18100601 is a deficient number, since it is larger than the sum of its proper divisors (1).

18100601 is an equidigital number, since it uses as much as digits as its factorization.

18100601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 18100601 is about 4254.4801092495. The cubic root of 18100601 is about 262.5614719224.

Adding to 18100601 its reverse (10600181), we get a palindrome (28700782).

The spelling of 18100601 in words is "eighteen million, one hundred thousand, six hundred one".