108571643 has 16 divisors (see below), whose sum is σ = 117328800. Its totient is φ = 100154880.

The previous prime is 108571637. The next prime is 108571657. The reversal of 108571643 is 346175801.

It is a cyclic number.

It is not a de Polignac number, because 108571643 - 2²⁰ = 107523067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108571633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130553 + ... + 131381.

It is an arithmetic number, because the mean of its divisors is an integer number (7333050).

Almost surely, 2^108571643 is an apocalyptic number.

108571643 is a deficient number, since it is larger than the sum of its proper divisors (8757157).

108571643 is a wasteful number, since it uses less digits than its factorization.

108571643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 108571643 is about 10419.7717345439. The cubic root of 108571643 is about 477.0590474335.

The spelling of 108571643 in words is "one hundred eight million, five hundred seventy-one thousand, six hundred forty-three".