108224561 has 4 divisors (see below), whose sum is σ = 108577392. Its totient is φ = 107871732.

The previous prime is 108224527. The next prime is 108224563. The reversal of 108224561 is 165422801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165422801 = 17 ⋅9730753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108224561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108224563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175955 + ... + 176568.

It is an arithmetic number, because the mean of its divisors is an integer number (27144348).

Almost surely, 2^108224561 is an apocalyptic number.

It is an amenable number.

108224561 is a deficient number, since it is larger than the sum of its proper divisors (352831).

108224561 is an equidigital number, since it uses as much as digits as its factorization.

108224561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352830.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 108224561 is about 10403.1034311882. The cubic root of 108224561 is about 476.5501503943.

The spelling of 108224561 in words is "one hundred eight million, two hundred twenty-four thousand, five hundred sixty-one".