108547421 has 2 divisors, whose sum is σ = 108547422. Its totient is φ = 108547420.

The previous prime is 108547403. The next prime is 108547441. The reversal of 108547421 is 124745801.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 21031396 = 9355^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 108547421 - 2¹⁰ = 108546397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108547441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54273710 + 54273711.

It is an arithmetic number, because the mean of its divisors is an integer number (54273711).

Almost surely, 2^108547421 is an apocalyptic number.

It is an amenable number.

108547421 is a deficient number, since it is larger than the sum of its proper divisors (1).

108547421 is an equidigital number, since it uses as much as digits as its factorization.

108547421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 108547421 is about 10418.6093601785. The cubic root of 108547421 is about 477.0235679923.

The spelling of 108547421 in words is "one hundred eight million, five hundred forty-seven thousand, four hundred twenty-one".