109691801 has 2 divisors, whose sum is σ = 109691802. Its totient is φ = 109691800.

The previous prime is 109691783. The next prime is 109691831. The reversal of 109691801 is 108196901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100480576 + 9211225 = 10024^2 + 3035^2 .

It is a cyclic number.

It is not a de Polignac number, because 109691801 - 2¹⁸ = 109429657 is a prime.

It is not a weakly prime, because it can be changed into another prime (109691831) 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, 54845900 + 54845901.

It is an arithmetic number, because the mean of its divisors is an integer number (54845901).

Almost surely, 2^109691801 is an apocalyptic number.

It is an amenable number.

109691801 is a deficient number, since it is larger than the sum of its proper divisors (1).

109691801 is an equidigital number, since it uses as much as digits as its factorization.

109691801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 109691801 is about 10473.3853648188. The cubic root of 109691801 is about 478.6940790053.

The spelling of 109691801 in words is "one hundred nine million, six hundred ninety-one thousand, eight hundred one".