109161907 has 8 divisors (see below), whose sum is σ = 112559040. Its totient is φ = 105803880.

The previous prime is 109161901. The next prime is 109161917. The reversal of 109161907 is 709161901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109161907 - 2⁷ = 109161779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109161901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4057 + ... + 15322.

It is an arithmetic number, because the mean of its divisors is an integer number (14069880).

Almost surely, 2^109161907 is an apocalyptic number.

109161907 is a deficient number, since it is larger than the sum of its proper divisors (3397133).

109161907 is a wasteful number, since it uses less digits than its factorization.

109161907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19553.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 109161907 is about 10448.0575706683. The cubic root of 109161907 is about 477.9220168295.

The spelling of 109161907 in words is "one hundred nine million, one hundred sixty-one thousand, nine hundred seven".