109195551349 has 2 divisors, whose sum is σ = 109195551350. Its totient is φ = 109195551348.

The previous prime is 109195551307. The next prime is 109195551379. The reversal of 109195551349 is 943155591901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67613000625 + 41582550724 = 260025^2 + 203918^2 .

It is a cyclic number.

It is not a de Polignac number, because 109195551349 - 2¹⁵ = 109195518581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109195551296 and 109195551305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109195551379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54597775674 + 54597775675.

It is an arithmetic number, because the mean of its divisors is an integer number (54597775675).

Almost surely, 2^109195551349 is an apocalyptic number.

It is an amenable number.

109195551349 is a deficient number, since it is larger than the sum of its proper divisors (1).

109195551349 is an equidigital number, since it uses as much as digits as its factorization.

109195551349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1093500, while the sum is 52.

The spelling of 109195551349 in words is "one hundred nine billion, one hundred ninety-five million, five hundred fifty-one thousand, three hundred forty-nine".