18014501 has 2 divisors, whose sum is σ = 18014502. Its totient is φ = 18014500.

The previous prime is 18014473. The next prime is 18014533. The reversal of 18014501 is 10541081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 6630625 = 3374^2 + 2575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18014501 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1152218 and since 18014501 and 1152218 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18014701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9007250 + 9007251.

It is an arithmetic number, because the mean of its divisors is an integer number (9007251).

Almost surely, 2^18014501 is an apocalyptic number.

It is an amenable number.

18014501 is a deficient number, since it is larger than the sum of its proper divisors (1).

18014501 is an equidigital number, since it uses as much as digits as its factorization.

18014501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 18014501 is about 4244.3493023077. The cubic root of 18014501 is about 262.1444971435.

Adding to 18014501 its reverse (10541081), we get a palindrome (28555582).

The spelling of 18014501 in words is "eighteen million, fourteen thousand, five hundred one".