108128507 has 2 divisors, whose sum is σ = 108128508. Its totient is φ = 108128506.

The previous prime is 108128459. The next prime is 108128509. The reversal of 108128507 is 705821801.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (705821801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108128507 - 2¹⁰ = 108127483 is a prime.

Together with 108128509, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108128509) 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, 54064253 + 54064254.

It is an arithmetic number, because the mean of its divisors is an integer number (54064254).

Almost surely, 2^108128507 is an apocalyptic number.

108128507 is a deficient number, since it is larger than the sum of its proper divisors (1).

108128507 is an equidigital number, since it uses as much as digits as its factorization.

108128507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 108128507 is about 10398.4858032312. The cubic root of 108128507 is about 476.4091223421.

The spelling of 108128507 in words is "one hundred eight million, one hundred twenty-eight thousand, five hundred seven".