109612065 has 16 divisors (see below), whose sum is σ = 179657856. Its totient is φ = 57033600.

The previous prime is 109612057. The next prime is 109612081. The reversal of 109612065 is 560216901.

It is not a de Polignac number, because 109612065 - 2³ = 109612057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88501 + ... + 89730.

It is an arithmetic number, because the mean of its divisors is an integer number (11228616).

Almost surely, 2^109612065 is an apocalyptic number.

109612065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109612065 is a deficient number, since it is larger than the sum of its proper divisors (70045791).

109612065 is a wasteful number, since it uses less digits than its factorization.

109612065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178280.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 109612065 is about 10469.5780717276. The cubic root of 109612065 is about 478.5780618160.

Adding to 109612065 its reverse (560216901), we get a palindrome (669828966).

The spelling of 109612065 in words is "one hundred nine million, six hundred twelve thousand, sixty-five".