109593961 has 2 divisors, whose sum is σ = 109593962. Its totient is φ = 109593960.

The previous prime is 109593949. The next prime is 109593997. The reversal of 109593961 is 169395901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 8088336 = 10075^2 + 2844^2 .

It is an emirp because it is prime and its reverse (169395901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109593961 - 2¹⁷ = 109462889 is a prime.

It is not a weakly prime, because it can be changed into another prime (109593901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54796980 + 54796981.

It is an arithmetic number, because the mean of its divisors is an integer number (54796981).

Almost surely, 2^109593961 is an apocalyptic number.

It is an amenable number.

109593961 is a deficient number, since it is larger than the sum of its proper divisors (1).

109593961 is an equidigital number, since it uses as much as digits as its factorization.

109593961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 109593961 is about 10468.7134357570. The cubic root of 109593961 is about 478.5517123617.

The spelling of 109593961 in words is "one hundred nine million, five hundred ninety-three thousand, nine hundred sixty-one".