108128971 has 2 divisors, whose sum is σ = 108128972. Its totient is φ = 108128970.

The previous prime is 108128963. The next prime is 108128983. The reversal of 108128971 is 179821801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108128971 - 2³ = 108128963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108128971.

It is not a weakly prime, because it can be changed into another prime (108128771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54064485 + 54064486.

It is an arithmetic number, because the mean of its divisors is an integer number (54064486).

Almost surely, 2^108128971 is an apocalyptic number.

108128971 is a deficient number, since it is larger than the sum of its proper divisors (1).

108128971 is an equidigital number, since it uses as much as digits as its factorization.

108128971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 37.

The square root of 108128971 is about 10398.5081141479. The cubic root of 108128971 is about 476.4098037952.

The spelling of 108128971 in words is "one hundred eight million, one hundred twenty-eight thousand, nine hundred seventy-one".