109081648 has 40 divisors (see below), whose sum is σ = 233172576. Its totient is φ = 49113600.

The previous prime is 109081633. The next prime is 109081649. The reversal of 109081648 is 846180901.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (109081649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133 + ... + 14923.

Almost surely, 2^109081648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109081648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116586288).

109081648 is an abundant number, since it is smaller than the sum of its proper divisors (124090928).

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

109081648 is a wasteful number, since it uses less digits than its factorization.

109081648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853 (or 12847 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 109081648 is about 10444.2160069581. The cubic root of 109081648 is about 477.8048607367.

The spelling of 109081648 in words is "one hundred nine million, eighty-one thousand, six hundred forty-eight".