107988109 has 2 divisors, whose sum is σ = 107988110. Its totient is φ = 107988108.

The previous prime is 107988079. The next prime is 107988143. The reversal of 107988109 is 901889701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 42863209 = 8070^2 + 6547^2 .

It is a cyclic number.

It is not a de Polignac number, because 107988109 - 2¹¹ = 107986061 is a prime.

It is a super-2 number, since 2×107988109² = 23322863370791762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107988169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53994054 + 53994055.

It is an arithmetic number, because the mean of its divisors is an integer number (53994055).

Almost surely, 2^107988109 is an apocalyptic number.

It is an amenable number.

107988109 is a deficient number, since it is larger than the sum of its proper divisors (1).

107988109 is an equidigital number, since it uses as much as digits as its factorization.

107988109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 107988109 is about 10391.7327236607. The cubic root of 107988109 is about 476.2028373694.

The spelling of 107988109 in words is "one hundred seven million, nine hundred eighty-eight thousand, one hundred nine".