18300001 has 2 divisors, whose sum is σ = 18300002. Its totient is φ = 18300000.

The previous prime is 18299993. The next prime is 18300017. The reversal of 18300001 is 10000381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15610401 + 2689600 = 3951^2 + 1640^2 .

It is a cyclic number.

It is not a de Polignac number, because 18300001 - 2³ = 18299993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18300071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9150000 + 9150001.

It is an arithmetic number, because the mean of its divisors is an integer number (9150001).

Almost surely, 2^18300001 is an apocalyptic number.

It is an amenable number.

18300001 is a deficient number, since it is larger than the sum of its proper divisors (1).

18300001 is an equidigital number, since it uses as much as digits as its factorization.

18300001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 18300001 is about 4277.8500441226. The cubic root of 18300001 is about 263.5220970275.

Adding to 18300001 its reverse (10000381), we get a palindrome (28300382).

The spelling of 18300001 in words is "eighteen million, three hundred thousand, one".