108971147 has 2 divisors, whose sum is σ = 108971148. Its totient is φ = 108971146.

The previous prime is 108971129. The next prime is 108971197. The reversal of 108971147 is 741179801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108971147 - 2¹² = 108967051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108971147.

It is not a weakly prime, because it can be changed into another prime (108971117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54485573 + 54485574.

It is an arithmetic number, because the mean of its divisors is an integer number (54485574).

Almost surely, 2^108971147 is an apocalyptic number.

108971147 is a deficient number, since it is larger than the sum of its proper divisors (1).

108971147 is an equidigital number, since it uses as much as digits as its factorization.

108971147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 108971147 is about 10438.9246093647. The cubic root of 108971147 is about 477.6434655670.

The spelling of 108971147 in words is "one hundred eight million, nine hundred seventy-one thousand, one hundred forty-seven".