108997571 has 2 divisors, whose sum is σ = 108997572. Its totient is φ = 108997570.

The previous prime is 108997549. The next prime is 108997579. The reversal of 108997571 is 175799801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108997571 - 2⁶ = 108997507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108997579) 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, 54498785 + 54498786.

It is an arithmetic number, because the mean of its divisors is an integer number (54498786).

Almost surely, 2^108997571 is an apocalyptic number.

108997571 is a deficient number, since it is larger than the sum of its proper divisors (1).

108997571 is an equidigital number, since it uses as much as digits as its factorization.

108997571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 108997571 is about 10440.1901802601. The cubic root of 108997571 is about 477.6820697641.

The spelling of 108997571 in words is "one hundred eight million, nine hundred ninety-seven thousand, five hundred seventy-one".