109161396 has 36 divisors (see below), whose sum is σ = 283396932. Its totient is φ = 35403264.

The previous prime is 109161389. The next prime is 109161407. The reversal of 109161396 is 693161901.

109161396 is a `hidden beast` number, since 109 + 161 + 396 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65124900 + 44036496 = 8070^2 + 6636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 109161396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39645 + ... + 42308.

It is an arithmetic number, because the mean of its divisors is an integer number (7872137).

Almost surely, 2^109161396 is an apocalyptic number.

It is an amenable number.

109161396 is an abundant number, since it is smaller than the sum of its proper divisors (174235536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109161396 is a wasteful number, since it uses less digits than its factorization.

109161396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82000 (or 81995 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 109161396 is about 10448.0331163334. The cubic root of 109161396 is about 477.9212710915.

The spelling of 109161396 in words is "one hundred nine million, one hundred sixty-one thousand, three hundred ninety-six".