108329681 has 2 divisors, whose sum is σ = 108329682. Its totient is φ = 108329680.

The previous prime is 108329657. The next prime is 108329693. The reversal of 108329681 is 186923801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86192656 + 22137025 = 9284^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 108329681 - 2¹⁴ = 108313297 is a prime.

It is a super-2 number, since 2×108329681² = 23470639571123522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108329281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54164840 + 54164841.

It is an arithmetic number, because the mean of its divisors is an integer number (54164841).

Almost surely, 2^108329681 is an apocalyptic number.

It is an amenable number.

108329681 is a deficient number, since it is larger than the sum of its proper divisors (1).

108329681 is an equidigital number, since it uses as much as digits as its factorization.

108329681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 108329681 is about 10408.1545434337. The cubic root of 108329681 is about 476.7043936973.

The spelling of 108329681 in words is "one hundred eight million, three hundred twenty-nine thousand, six hundred eighty-one".