109012065 has 16 divisors (see below), whose sum is σ = 182003328. Its totient is φ = 55611776.

The previous prime is 109012049. The next prime is 109012067. The reversal of 109012065 is 560210901.

109012065 is nontrivially palindromic in base 14.

It is a cyclic number.

It is not a de Polignac number, because 109012065 - 2⁴ = 109012049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109012067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157644 + ... + 158333.

It is an arithmetic number, because the mean of its divisors is an integer number (11375208).

Almost surely, 2^109012065 is an apocalyptic number.

109012065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109012065 is a deficient number, since it is larger than the sum of its proper divisors (72991263).

109012065 is a wasteful number, since it uses less digits than its factorization.

109012065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316008.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 109012065 is about 10440.8843016289. The cubic root of 109012065 is about 477.7032421535.

Adding to 109012065 its reverse (560210901), we get a palindrome (669222966).

The spelling of 109012065 in words is "one hundred nine million, twelve thousand, sixty-five".