109648881 has 12 divisors (see below), whose sum is σ = 158487108. Its totient is φ = 73050624.

The previous prime is 109648873. The next prime is 109648901. The reversal of 109648881 is 188846901.

109648881 is a `hidden beast` number, since 1 + 0 + 96 + 488 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70711281 + 38937600 = 8409^2 + 6240^2 .

It is not a de Polignac number, because 109648881 - 2³ = 109648873 is a prime.

It is a super-2 number, since 2×109648881² = 24045754209104322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109648811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14881 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (13207259).

Almost surely, 2^109648881 is an apocalyptic number.

It is an amenable number.

109648881 is a deficient number, since it is larger than the sum of its proper divisors (48838227).

109648881 is a wasteful number, since it uses less digits than its factorization.

109648881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112 (or 8109 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 109648881 is about 10471.3361611592. The cubic root of 109648881 is about 478.6316366898.

The spelling of 109648881 in words is "one hundred nine million, six hundred forty-eight thousand, eight hundred eighty-one".