108701645 has 24 divisors (see below), whose sum is σ = 142182216. Its totient is φ = 79742208.

The previous prime is 108701633. The next prime is 108701651. The reversal of 108701645 is 546107801.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 42328036 + 66373609 = 6506^2 + 8147^2 .

It is not a de Polignac number, because 108701645 - 2⁴ = 108701629 is a prime.

It is a super-3 number, since 3×108701645³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166139 + ... + 166791.

It is an arithmetic number, because the mean of its divisors is an integer number (5924259).

Almost surely, 2^108701645 is an apocalyptic number.

It is an amenable number.

108701645 is a deficient number, since it is larger than the sum of its proper divisors (33480571).

108701645 is a wasteful number, since it uses less digits than its factorization.

108701645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 108701645 is about 10426.0081047350. The cubic root of 108701645 is about 477.2493791863.

The spelling of 108701645 in words is "one hundred eight million, seven hundred one thousand, six hundred forty-five".