108746509 has 2 divisors, whose sum is σ = 108746510. Its totient is φ = 108746508.

The previous prime is 108746479. The next prime is 108746531. The reversal of 108746509 is 905647801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105781225 + 2965284 = 10285^2 + 1722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108746509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108746009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54373254 + 54373255.

It is an arithmetic number, because the mean of its divisors is an integer number (54373255).

Almost surely, 2^108746509 is an apocalyptic number.

It is an amenable number.

108746509 is a deficient number, since it is larger than the sum of its proper divisors (1).

108746509 is an equidigital number, since it uses as much as digits as its factorization.

108746509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 108746509 is about 10428.1594253253. The cubic root of 108746509 is about 477.3150279050.

The spelling of 108746509 in words is "one hundred eight million, seven hundred forty-six thousand, five hundred nine".