109571089 has 2 divisors, whose sum is σ = 109571090. Its totient is φ = 109571088.

The previous prime is 109571027. The next prime is 109571101. The reversal of 109571089 is 980175901.

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., 58018689 + 51552400 = 7617^2 + 7180^2 .

It is a cyclic number.

It is not a de Polignac number, because 109571089 - 2¹⁹ = 109046801 is a prime.

It is not a weakly prime, because it can be changed into another prime (109581089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54785544 + 54785545.

It is an arithmetic number, because the mean of its divisors is an integer number (54785545).

Almost surely, 2^109571089 is an apocalyptic number.

It is an amenable number.

109571089 is a deficient number, since it is larger than the sum of its proper divisors (1).

109571089 is an equidigital number, since it uses as much as digits as its factorization.

109571089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 109571089 is about 10467.6209809106. The cubic root of 109571089 is about 478.5184191761.

The spelling of 109571089 in words is "one hundred nine million, five hundred seventy-one thousand, eighty-nine".