1634201 has 2 divisors, whose sum is σ = 1634202. Its totient is φ = 1634200.

The previous prime is 1634183. The next prime is 1634203. The reversal of 1634201 is 1024361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177225 + 456976 = 1085^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634201 - 2¹⁴ = 1617817 is a prime.

It is a super-2 number, since 2×1634201² = 5341225816802, which contains 22 as substring.

Together with 1634203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1634201.

It is not a weakly prime, because it can be changed into another prime (1634203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817100 + 817101.

It is an arithmetic number, because the mean of its divisors is an integer number (817101).

2^1634201 is an apocalyptic number.

It is an amenable number.

1634201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634201 is an equidigital number, since it uses as much as digits as its factorization.

1634201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1634201 is about 1278.3587133508. The cubic root of 1634201 is about 117.7882105456.

Adding to 1634201 its reverse (1024361), we get a palindrome (2658562).

The spelling of 1634201 in words is "one million, six hundred thirty-four thousand, two hundred one".