1898201 has 2 divisors, whose sum is σ = 1898202. Its totient is φ = 1898200.

The previous prime is 1898179. The next prime is 1898209. The reversal of 1898201 is 1028981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819801 + 78400 = 1349^2 + 280^2 .

It is an emirp because it is prime and its reverse (1028981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1898201 - 2¹⁰ = 1897177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1898209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949100 + 949101.

It is an arithmetic number, because the mean of its divisors is an integer number (949101).

2^1898201 is an apocalyptic number.

It is an amenable number.

1898201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1898201 is an equidigital number, since it uses as much as digits as its factorization.

1898201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1898201 is about 1377.7521547797. The cubic root of 1898201 is about 123.8171298535.

The spelling of 1898201 in words is "one million, eight hundred ninety-eight thousand, two hundred one".