109169216 has 28 divisors (see below), whose sum is σ = 233298492. Its totient is φ = 50385408.

The previous prime is 109169209. The next prime is 109169219. The reversal of 109169216 is 612961901.

It can be written as a sum of positive squares in 2 ways, for example, as 71910400 + 37258816 = 8480^2 + 6104^2 .

It is not an unprimeable number, because it can be changed into a prime (109169219) 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, 64775 + ... + 66438.

It is an arithmetic number, because the mean of its divisors is an integer number (8332089).

Almost surely, 2^109169216 is an apocalyptic number.

109169216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

109169216 is an abundant number, since it is smaller than the sum of its proper divisors (124129276).

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

109169216 is a wasteful number, since it uses less digits than its factorization.

109169216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131238 (or 131228 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 109169216 is about 10448.4073427485. The cubic root of 109169216 is about 477.9326831084.

It can be divided in two parts, 1091 and 69216, that added together give a palindrome (70307).

The spelling of 109169216 in words is "one hundred nine million, one hundred sixty-nine thousand, two hundred sixteen".