1098101 has 2 divisors, whose sum is σ = 1098102. Its totient is φ = 1098100.

The previous prime is 1098077. The next prime is 1098109. The reversal of 1098101 is 1018901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 96100 = 1001^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098101 - 2⁶ = 1098037 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1098109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549050 + 549051.

It is an arithmetic number, because the mean of its divisors is an integer number (549051).

2^1098101 is an apocalyptic number.

It is an amenable number.

1098101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098101 is an equidigital number, since it uses as much as digits as its factorization.

1098101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1098101 is about 1047.9031443793. The cubic root of 1098101 is about 103.1685743006.

The spelling of 1098101 in words is "one million, ninety-eight thousand, one hundred one".