109957161 has 8 divisors (see below), whose sum is σ = 154325920. Its totient is φ = 69446592.

The previous prime is 109957091. The next prime is 109957171. The reversal of 109957161 is 161759901.

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

It is not a de Polignac number, because 109957161 - 2¹¹ = 109955113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109957171) 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, 964480 + ... + 964593.

It is an arithmetic number, because the mean of its divisors is an integer number (19290740).

Almost surely, 2^109957161 is an apocalyptic number.

It is an amenable number.

109957161 is a deficient number, since it is larger than the sum of its proper divisors (44368759).

109957161 is a wasteful number, since it uses less digits than its factorization.

109957161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929095.

The product of its (nonzero) digits is 17010, while the sum is 39.

The square root of 109957161 is about 10486.0460136316. The cubic root of 109957161 is about 479.0797777406.

The spelling of 109957161 in words is "one hundred nine million, nine hundred fifty-seven thousand, one hundred sixty-one".