109071065 has 16 divisors (see below), whose sum is σ = 138911760. Its totient is φ = 81930240.

The previous prime is 109071049. The next prime is 109071101. The reversal of 109071065 is 560170901.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1907161 + 107163904 = 1381^2 + 10352^2 .

It is not a de Polignac number, because 109071065 - 2⁴ = 109071049 is a prime.

It is a super-4 number, since 4×109071065⁴ (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 42005 + ... + 44525.

It is an arithmetic number, because the mean of its divisors is an integer number (8681985).

Almost surely, 2^109071065 is an apocalyptic number.

It is an amenable number.

109071065 is a deficient number, since it is larger than the sum of its proper divisors (29840695).

109071065 is a wasteful number, since it uses less digits than its factorization.

109071065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 109071065 is about 10443.7093506091. The cubic root of 109071065 is about 477.7894081759.

The spelling of 109071065 in words is "one hundred nine million, seventy-one thousand, sixty-five".