107521644 has 12 divisors (see below), whose sum is σ = 250883864. Its totient is φ = 35840544.

The previous prime is 107521621. The next prime is 107521663. The reversal of 107521644 is 446125701.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4480057 + ... + 4480080.

Almost surely, 2^107521644 is an apocalyptic number.

It is an amenable number.

107521644 is an abundant number, since it is smaller than the sum of its proper divisors (143362220).

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

107521644 is a wasteful number, since it uses less digits than its factorization.

107521644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8960144 (or 8960142 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 107521644 is about 10369.2643904956. The cubic root of 107521644 is about 475.5161797721.

The spelling of 107521644 in words is "one hundred seven million, five hundred twenty-one thousand, six hundred forty-four".