108442729 has 2 divisors, whose sum is σ = 108442730. Its totient is φ = 108442728.

The previous prime is 108442703. The next prime is 108442739. The reversal of 108442729 is 927244801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75690000 + 32752729 = 8700^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 108442729 - 2⁷ = 108442601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108442739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54221364 + 54221365.

It is an arithmetic number, because the mean of its divisors is an integer number (54221365).

Almost surely, 2^108442729 is an apocalyptic number.

It is an amenable number.

108442729 is a deficient number, since it is larger than the sum of its proper divisors (1).

108442729 is an equidigital number, since it uses as much as digits as its factorization.

108442729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 108442729 is about 10413.5838691586. The cubic root of 108442729 is about 476.8701584959.

The spelling of 108442729 in words is "one hundred eight million, four hundred forty-two thousand, seven hundred twenty-nine".