109831901 has 2 divisors, whose sum is σ = 109831902. Its totient is φ = 109831900.

The previous prime is 109831889. The next prime is 109831919. The reversal of 109831901 is 109138901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109725625 + 106276 = 10475^2 + 326^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109831901 is a prime.

It is equal to p_6294191 and since 109831901 and 6294191 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109831921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54915950 + 54915951.

It is an arithmetic number, because the mean of its divisors is an integer number (54915951).

Almost surely, 2^109831901 is an apocalyptic number.

It is an amenable number.

109831901 is a deficient number, since it is larger than the sum of its proper divisors (1).

109831901 is an equidigital number, since it uses as much as digits as its factorization.

109831901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 109831901 is about 10480.0716123507. The cubic root of 109831901 is about 478.8977907016.

The spelling of 109831901 in words is "one hundred nine million, eight hundred thirty-one thousand, nine hundred one".