109297216 has 112 divisors (see below), whose sum is σ = 266858496. Its totient is φ = 43352064.

The previous prime is 109297213. The next prime is 109297241. The reversal of 109297216 is 612792901.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109297213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860545 + ... + 860671.

Almost surely, 2^109297216 is an apocalyptic number.

109297216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109297216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133429248).

109297216 is an abundant number, since it is smaller than the sum of its proper divisors (157561280).

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

109297216 is a wasteful number, since it uses less digits than its factorization.

109297216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 109297216 is about 10454.5308837843. The cubic root of 109297216 is about 478.1194008543.

It can be divided in two parts, 10929 and 7216, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 109297216 in words is "one hundred nine million, two hundred ninety-seven thousand, two hundred sixteen".