108743021 has 2 divisors, whose sum is σ = 108743022. Its totient is φ = 108743020.

The previous prime is 108743017. The next prime is 108743081. The reversal of 108743021 is 120347801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105801796 + 2941225 = 10286^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 108743021 - 2² = 108743017 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108743081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54371510 + 54371511.

It is an arithmetic number, because the mean of its divisors is an integer number (54371511).

Almost surely, 2^108743021 is an apocalyptic number.

It is an amenable number.

108743021 is a deficient number, since it is larger than the sum of its proper divisors (1).

108743021 is an equidigital number, since it uses as much as digits as its factorization.

108743021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 108743021 is about 10427.9921845003. The cubic root of 108743021 is about 477.3099246221.

The spelling of 108743021 in words is "one hundred eight million, seven hundred forty-three thousand, twenty-one".