108492561 has 8 divisors (see below), whose sum is σ = 160729760. Its totient is φ = 72328356.

The previous prime is 108492551. The next prime is 108492577. The reversal of 108492561 is 165294801.

108492561 is a `hidden beast` number, since 1 + 0 + 8 + 4 + 92 + 561 = 666.

It is not a de Polignac number, because 108492561 - 2⁹ = 108492049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108492511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009095 + ... + 2009148.

It is an arithmetic number, because the mean of its divisors is an integer number (20091220).

Almost surely, 2^108492561 is an apocalyptic number.

It is an amenable number.

108492561 is a deficient number, since it is larger than the sum of its proper divisors (52237199).

108492561 is an equidigital number, since it uses as much as digits as its factorization.

108492561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018252 (or 4018246 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 108492561 is about 10415.9762384522. The cubic root of 108492561 is about 476.9431916841.

The spelling of 108492561 in words is "one hundred eight million, four hundred ninety-two thousand, five hundred sixty-one".