18234001 has 2 divisors, whose sum is σ = 18234002. Its totient is φ = 18234000.

The previous prime is 18233951. The next prime is 18234017. The reversal of 18234001 is 10043281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 1382976 = 4105^2 + 1176^2 .

It is an emirp because it is prime and its reverse (10043281) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18234001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18234001.

It is not a weakly prime, because it can be changed into another prime (18234031) 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, 9117000 + 9117001.

It is an arithmetic number, because the mean of its divisors is an integer number (9117001).

Almost surely, 2^18234001 is an apocalyptic number.

It is an amenable number.

18234001 is a deficient number, since it is larger than the sum of its proper divisors (1).

18234001 is an equidigital number, since it uses as much as digits as its factorization.

18234001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18234001 is about 4270.1289207704. The cubic root of 18234001 is about 263.2049129034.

Adding to 18234001 its reverse (10043281), we get a palindrome (28277282).

The spelling of 18234001 in words is "eighteen million, two hundred thirty-four thousand, one".