109214568 has 40 divisors (see below), whose sum is σ = 305903730. Its totient is φ = 36404640.

The previous prime is 109214563. The next prime is 109214587. The reversal of 109214568 is 865412901.

109214568 is a `hidden beast` number, since 1 + 0 + 92 + 1 + 4 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 60186564 + 49028004 = 7758^2 + 7002^2 .

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

It is not an unprimeable number, because it can be changed into a prime (109214563) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 83623 + ... + 84918.

Almost surely, 2^109214568 is an apocalyptic number.

109214568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

109214568 is an abundant number, since it is smaller than the sum of its proper divisors (196689162).

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

109214568 is a wasteful number, since it uses less digits than its factorization.

109214568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168559 (or 168546 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 109214568 is about 10450.5774003162. The cubic root of 109214568 is about 477.9988562264.

The spelling of 109214568 in words is "one hundred nine million, two hundred fourteen thousand, five hundred sixty-eight".