108289645 has 32 divisors (see below), whose sum is σ = 141926400. Its totient is φ = 79050816.

The previous prime is 108289637. The next prime is 108289661. The reversal of 108289645 is 546982801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 108289645 - 2³ = 108289637 is a prime.

It is a super-3 number, since 3×108289645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352582 + ... + 352888.

It is an arithmetic number, because the mean of its divisors is an integer number (4435200).

Almost surely, 2^108289645 is an apocalyptic number.

It is an amenable number.

108289645 is a deficient number, since it is larger than the sum of its proper divisors (33636755).

108289645 is a wasteful number, since it uses less digits than its factorization.

108289645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 108289645 is about 10406.2310660488. The cubic root of 108289645 is about 476.6456603671.

The spelling of 108289645 in words is "one hundred eight million, two hundred eighty-nine thousand, six hundred forty-five".