109648520 has 32 divisors (see below), whose sum is σ = 251368920. Its totient is φ = 43031040.

The previous prime is 109648489. The next prime is 109648531. The reversal of 109648520 is 25846901.

It can be written as a sum of positive squares in 4 ways, for example, as 73239364 + 36409156 = 8558^2 + 6034^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23741 + ... + 27980.

Almost surely, 2^109648520 is an apocalyptic number.

109648520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109648520 is an abundant number, since it is smaller than the sum of its proper divisors (141720400).

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

109648520 is a wasteful number, since it uses less digits than its factorization.

109648520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51785 (or 51781 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 109648520 is about 10471.3189236122. The cubic root of 109648520 is about 478.6311114186.

The spelling of 109648520 in words is "one hundred nine million, six hundred forty-eight thousand, five hundred twenty".