108723137 has 2 divisors, whose sum is σ = 108723138. Its totient is φ = 108723136.

The previous prime is 108723127. The next prime is 108723163. The reversal of 108723137 is 731327801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85673536 + 23049601 = 9256^2 + 4801^2 .

It is an emirp because it is prime and its reverse (731327801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108723137 - 2¹⁰ = 108722113 is a prime.

It is not a weakly prime, because it can be changed into another prime (108723127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54361568 + 54361569.

It is an arithmetic number, because the mean of its divisors is an integer number (54361569).

Almost surely, 2^108723137 is an apocalyptic number.

It is an amenable number.

108723137 is a deficient number, since it is larger than the sum of its proper divisors (1).

108723137 is an equidigital number, since it uses as much as digits as its factorization.

108723137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 108723137 is about 10427.0387454924. The cubic root of 108723137 is about 477.2808303133.

The spelling of 108723137 in words is "one hundred eight million, seven hundred twenty-three thousand, one hundred thirty-seven".