109040071 has 4 divisors (see below), whose sum is σ = 124617232. Its totient is φ = 93462912.

The previous prime is 109040059. The next prime is 109040089. The reversal of 109040071 is 170040901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109040071 - 2⁹ = 109039559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109041071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7788570 + ... + 7788583.

It is an arithmetic number, because the mean of its divisors is an integer number (31154308).

Almost surely, 2^109040071 is an apocalyptic number.

109040071 is a deficient number, since it is larger than the sum of its proper divisors (15577161).

109040071 is an equidigital number, since it uses as much as digits as its factorization.

109040071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15577160.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 109040071 is about 10442.2253854243. The cubic root of 109040071 is about 477.7441471410.

Adding to 109040071 its reverse (170040901), we get a palindrome (279080972).

The spelling of 109040071 in words is "one hundred nine million, forty thousand, seventy-one".