103699109 has 2 divisors, whose sum is σ = 103699110. Its totient is φ = 103699108.

The previous prime is 103699103. The next prime is 103699147. The reversal of 103699109 is 901996301.

It is an a-pointer prime, because the next prime (103699147) can be obtained adding 103699109 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54390625 + 49308484 = 7375^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 103699109 - 2¹² = 103695013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103699103) 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, 51849554 + 51849555.

It is an arithmetic number, because the mean of its divisors is an integer number (51849555).

Almost surely, 2^103699109 is an apocalyptic number.

It is an amenable number.

103699109 is a deficient number, since it is larger than the sum of its proper divisors (1).

103699109 is an equidigital number, since it uses as much as digits as its factorization.

103699109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 103699109 is about 10183.2759463740. The cubic root of 103699109 is about 469.8129767436.

The spelling of 103699109 in words is "one hundred three million, six hundred ninety-nine thousand, one hundred nine".