18134201 has 2 divisors, whose sum is σ = 18134202. Its totient is φ = 18134200.

The previous prime is 18134197. The next prime is 18134243. The reversal of 18134201 is 10243181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15808576 + 2325625 = 3976^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 18134201 - 2² = 18134197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18139201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9067100 + 9067101.

It is an arithmetic number, because the mean of its divisors is an integer number (9067101).

Almost surely, 2^18134201 is an apocalyptic number.

It is an amenable number.

18134201 is a deficient number, since it is larger than the sum of its proper divisors (1).

18134201 is an equidigital number, since it uses as much as digits as its factorization.

18134201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18134201 is about 4258.4270570247. The cubic root of 18134201 is about 262.7238350820.

Adding to 18134201 its reverse (10243181), we get a palindrome (28377382).

The spelling of 18134201 in words is "eighteen million, one hundred thirty-four thousand, two hundred one".