109161928 has 16 divisors (see below), whose sum is σ = 204791580. Its totient is φ = 54550848.

The previous prime is 109161917. The next prime is 109161929. The reversal of 109161928 is 829161901.

It can be written as a sum of positive squares in 2 ways, for example, as 78889924 + 30272004 = 8882^2 + 5502^2 .

It is a super-3 number, since 3×109161928³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (109161929) 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, 22050 + ... + 26542.

Almost surely, 2^109161928 is an apocalyptic number.

It is an amenable number.

109161928 is a deficient number, since it is larger than the sum of its proper divisors (95629652).

109161928 is a wasteful number, since it uses less digits than its factorization.

109161928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536 (or 7532 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 109161928 is about 10448.0585756398. The cubic root of 109161928 is about 477.9220474762.

The spelling of 109161928 in words is "one hundred nine million, one hundred sixty-one thousand, nine hundred twenty-eight".