109898101 has 2 divisors, whose sum is σ = 109898102. Its totient is φ = 109898100.

The previous prime is 109898099. The next prime is 109898119. The reversal of 109898101 is 101898901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105062500 + 4835601 = 10250^2 + 2199^2 .

It is a cyclic number.

It is not a de Polignac number, because 109898101 - 2¹ = 109898099 is a prime.

Together with 109898099, it forms a pair of twin primes.

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 (109898141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54949050 + 54949051.

It is an arithmetic number, because the mean of its divisors is an integer number (54949051).

Almost surely, 2^109898101 is an apocalyptic number.

It is an amenable number.

109898101 is a deficient number, since it is larger than the sum of its proper divisors (1).

109898101 is an equidigital number, since it uses as much as digits as its factorization.

109898101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 109898101 is about 10483.2295119395. The cubic root of 109898101 is about 478.9939882120.

It can be divided in two parts, 1098 and 98101, that added together give a palindrome (99199).

The spelling of 109898101 in words is "one hundred nine million, eight hundred ninety-eight thousand, one hundred one".