109708961 has 2 divisors, whose sum is σ = 109708962. Its totient is φ = 109708960.

The previous prime is 109708909. The next prime is 109708979. The reversal of 109708961 is 169807901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102718225 + 6990736 = 10135^2 + 2644^2 .

It is an emirp because it is prime and its reverse (169807901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109708961 - 2¹⁰ = 109707937 is a prime.

It is a super-2 number, since 2×109708961² = 24072112247399042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109708901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54854480 + 54854481.

It is an arithmetic number, because the mean of its divisors is an integer number (54854481).

Almost surely, 2^109708961 is an apocalyptic number.

It is an amenable number.

109708961 is a deficient number, since it is larger than the sum of its proper divisors (1).

109708961 is an equidigital number, since it uses as much as digits as its factorization.

109708961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 109708961 is about 10474.2045521366. The cubic root of 109708961 is about 478.7190397347.

The spelling of 109708961 in words is "one hundred nine million, seven hundred eight thousand, nine hundred sixty-one".