109585969 has 2 divisors, whose sum is σ = 109585970. Its totient is φ = 109585968.

The previous prime is 109585963. The next prime is 109586003. The reversal of 109585969 is 969585901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105822369 + 3763600 = 10287^2 + 1940^2 .

It is an emirp because it is prime and its reverse (969585901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109585969 - 2⁷ = 109585841 is a prime.

It is a super-2 number, since 2×109585969² = 24018169203337922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109585963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54792984 + 54792985.

It is an arithmetic number, because the mean of its divisors is an integer number (54792985).

Almost surely, 2^109585969 is an apocalyptic number.

It is an amenable number.

109585969 is a deficient number, since it is larger than the sum of its proper divisors (1).

109585969 is an equidigital number, since it uses as much as digits as its factorization.

109585969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 52.

The square root of 109585969 is about 10468.3317200020. The cubic root of 109585969 is about 478.5400794876.

The spelling of 109585969 in words is "one hundred nine million, five hundred eighty-five thousand, nine hundred sixty-nine".